共用题干 第三篇Listening Device Provides Early Landslide(山崩;地滑;塌方)WarningA device that provides early warning of a landslide by monitoring vibrations(振动)in soil is being tested by UK researchers,The device could save thousands of lives each year by warning when

题目
共用题干
第三篇

Listening Device Provides Early Landslide(山崩;地滑;塌方)Warning

A device that provides early warning of a landslide by monitoring vibrations(振动)in soil is being tested
by UK researchers,The device could save thousands of lives each year by warning when an area should be
evacuated(疏散,撤走),the scientists say. Such natural disasters are common in countries that experience
sudden, heavy rainfall (降雨,降雨量), and can also be triggered by earthquakes and even water
erosion(腐蚀,侵蚀).
Landslides start when a few particles of soil or rock within a slope start to move,hut the early stages can
be hard to spot.Following this initial movement,"slopes can become unstable in a matter of hours or
minutes,"says Nell Dixon at Southborough University,UK. He says。warning system that monitors this
movement"might be enough to evacuate a block of flats or clear a road,and save lives".
The most common way to monitor a slope for signs of an imminent(即将发生的) landslide is to watch
for changes in its shape. Surveyors can do this by measuring aside directly,or sensors(传感器)sunk into
boreholes(钻孔,井眼)or fixed above ground can be used to monitor the shape of a slope. Slopes can,
however,change shape without triggering a landslide,so either method is prone to causing false alarms.Now
Dixon's team has developed a device that listens for the vibrations caused when particles begin moving
within a slope.
The device takes the form of a steel pipe dropped into a borehole in a slope.The borehole is filled in
with gravel(砾,沙砾,砾石)around the pipe to help transmit high-frequency vibrations generated by particles
within the slope.These vibrations pass up the tube and are picked up by a sensor on the surface.Software
analyses the vibration signal to determine whether a landslide may be imminent.
The device is currently being tested in a 6-metre-tall artificial clay embankment(堤岸)in Newcastle,
UK.Early results suggest it should provide fewer false positives than existing systems.Once it has been
carefully and thoroughly tested,the device could be used to create a complete early-warning system for
dangerous slopes.
"Locations with a significant risk of landslides could definitely benefit from a machine like this,"says
Adam Poulter,an expert at the British Red Ci?oss,"As long as it doesn't cost too much."But,Poulter adds
that an early-warning system may not be enough on its own."You need to have the human communication."
he says,"Making systems that get warnings to those who need them can be difficult."

Which of the following statements is true of landslides?
A:The initial movement is hard to spot.
B:They start with a movement of a few particles of soil or rock.
C:They can be destructive in a matter of hours or minutes.
D:All of the above.

相似考题
参考答案和解析
答案:D
解析:
短文第一段第一句提到了山体滑坡,此处的自然灾害指的是上文的山体滑坡,故选D。
短文第二段第一、二句提到“滑坡开始时,一个山坡上的土壤或岩石粒子移动,但初期 可能很难辨认。然后山坡在数小时或数分钟内可能变得不稳固”,故选D。
短文第三段倒数第二句提到“……任何一种方法(普通方法)都可能产生错误预警”,故 选C。
根据短文第四段第二句可知,地上凿出的洞而非该装置是用砾石填充的,A项的叙述不 正确。故选A
此句意为“早期的结果表明它应该提供比现有系统更少的不实证据”,故选B。 positive 意为“确凿的证据”。第5部分:补全短文
更多“共用题干 第三篇Listening Device Provides Early Landslide(山崩;地滑;塌方)WarningA device that provides early warning of a landslide by monitoring vibrations(振动)in soil is being tested by UK researchers,The device could save thousands of lives each year by warning when ”相关问题
  • 第1题:

    In computing,a device driver(commonly referred to as simply a driver)is acomputer program that operates or controls a particular type of device that is attached to a computer.A driver provides______to hardware devices,enabling operating systems and other computer programs to access hardware functions without needing to know precise details of the hardware being used。

    A.a software interface
    B.a programming language
    C.a function
    D.an Internal Bus

    答案:A
    解析:

  • 第2题:

    共用题干
    第三篇

    Listening Device Provides Early Landslide(山崩;地滑;塌方)Warning

    A device that provides early warning of a landslide by monitoring vibrations(振动)in soil is being tested
    by UK researchers,The device could save thousands of lives each year by warning when an area should be
    evacuated(疏散,撤走),the scientists say. Such natural disasters are common in countries that experience
    sudden, heavy rainfall (降雨,降雨量), and can also be triggered by earthquakes and even water
    erosion(腐蚀,侵蚀).
    Landslides start when a few particles of soil or rock within a slope start to move,hut the early stages can
    be hard to spot.Following this initial movement,"slopes can become unstable in a matter of hours or
    minutes,"says Nell Dixon at Southborough University,UK. He says。warning system that monitors this
    movement"might be enough to evacuate a block of flats or clear a road,and save lives".
    The most common way to monitor a slope for signs of an imminent(即将发生的) landslide is to watch
    for changes in its shape. Surveyors can do this by measuring aside directly,or sensors(传感器)sunk into
    boreholes(钻孔,井眼)or fixed above ground can be used to monitor the shape of a slope. Slopes can,
    however,change shape without triggering a landslide,so either method is prone to causing false alarms.Now
    Dixon's team has developed a device that listens for the vibrations caused when particles begin moving
    within a slope.
    The device takes the form of a steel pipe dropped into a borehole in a slope.The borehole is filled in
    with gravel(砾,沙砾,砾石)around the pipe to help transmit high-frequency vibrations generated by particles
    within the slope.These vibrations pass up the tube and are picked up by a sensor on the surface.Software
    analyses the vibration signal to determine whether a landslide may be imminent.
    The device is currently being tested in a 6-metre-tall artificial clay embankment(堤岸)in Newcastle,
    UK.Early results suggest it should provide fewer false positives than existing systems.Once it has been
    carefully and thoroughly tested,the device could be used to create a complete early-warning system for
    dangerous slopes.
    "Locations with a significant risk of landslides could definitely benefit from a machine like this,"says
    Adam Poulter,an expert at the British Red Ci?oss,"As long as it doesn't cost too much."But,Poulter adds
    that an early-warning system may not be enough on its own."You need to have the human communication."
    he says,"Making systems that get warnings to those who need them can be difficult."

    Which of the following statements is NOT true of the device,according to Paragraph 4 ?
    A:It is filled in with gravel.
    B:It consists of a steel pipe.
    C:It is dropped into a borehole filled in with gravel.
    D:It is connected to a sensor on the surface.

    答案:A
    解析:
    短文第一段第一句提到了山体滑坡,此处的自然灾害指的是上文的山体滑坡,故选D。
    短文第二段第一、二句提到“滑坡开始时,一个山坡上的土壤或岩石粒子移动,但初期 可能很难辨认。然后山坡在数小时或数分钟内可能变得不稳固”,故选D。
    短文第三段倒数第二句提到“……任何一种方法(普通方法)都可能产生错误预警”,故 选C。
    根据短文第四段第二句可知,地上凿出的洞而非该装置是用砾石填充的,A项的叙述不 正确。故选A
    此句意为“早期的结果表明它应该提供比现有系统更少的不实证据”,故选B。 positive 意为“确凿的证据”。第5部分:补全短文

  • 第3题:

    You have a server that runs Windows Server 2003 Service Pack 2 (SP2). You have a third-party hardware device installed. The device uses a third-party driver. The device works properly. The driver’s hardware manufacturer provides a new device driver. You update the device driver, but the device fails to work. You need to ensure that you can use the new hardware device. What should you do? ()

    • A、Connect to Windows Update and install all driver updates.
    • B、From the properties of the device, select Roll Back Driver.
    • C、From Device Manager, uninstall the device and then restart the server.
    • D、From Device Manager, disable the device and then click Scan for hardware changes.

    正确答案:B

  • 第4题:

    The cisco wireless location appliance provides an audit trail for each device tracked for up to how many days?()

    • A、45
    • B、60
    • C、15
    • D、30

    正确答案:D

  • 第5题:

    Which component of Cisco ASDM provides administrators with a complete system overview and device health statistics at a glance?()

    • A、 Dashboard
    • B、 AlP SSM
    • C、 Resource Manager
    • D、 Cisco ASDM Launcher

    正确答案:A

  • 第6题:

    When installing external SCSI devices, terminators are required on?()

    • A、the SCSI adapter.
    • B、each device.
    • C、the first device.
    • D、the last device.
    • E、the server's parallel port.

    正确答案:A,D

  • 第7题:

    The same Web site is visited for the second time using a branch SRX Series Services Gateway configured with SurfControl integrated Web filtering.Which statement is true?()

    • A、The SRX device sends the URL to the SurfControl server in the cloud and the SurfControl server provides the SRX. 
    • B、The SRX device sends the URL to the SurfControl server in the cloud and the SurfControl server asks the SRX device previously visited.
    • C、The SRX device looks at its local cache to find the category of the URL.
    • D、The SRX device does not perform any Web filtering operation as the Web site has already been visited.

    正确答案:C

  • 第8题:

    Which statement is true about SurfControl integrated Web filter solution?()

    • A、The SurfControl server in the cloud provides the SRX device with the category of the URL as well as the reputation of  the URL. 
    • B、The SurfControl server in the cloud provides the SRX device with only the category of the URL.
    • C、The SurfControl server in the cloud provides the SRX device with only the reputation of the URL.
    • D、The SurfControl server in the cloud provides the SRX device with a decision to permit or deny the URL.

    正确答案:B

  • 第9题:

    You install Microsoft Windows Vista on a new computer that is not connected to the Internet. After you log on, you receive a warning message about an unknown device.  You need to prevent the display of the warning message until you download an available hardware driver.  What are the two possible ways to achieve this goal? ()

    • A、Disable the device.
    • B、Uninstall the device.
    • C、Select the Ask me again later option from the warning message details.
    • D、Select the Dont show this message again for this device option from the warning message details.

    正确答案:A,D,N

  • 第10题:

    单选题
    A smoke _____ system provides families with early warning of fire.
    A

    collection

    B

    repression

    C

    detection

    D

    resonance


    正确答案: A
    解析:
    detection检测。collection采集。repression抑制。resonance回声,共鸣。

  • 第11题:

    单选题
    What monitoring device best indicates the load being carried by a diesel engine?()
    A

    Lube oil pressure gauge

    B

    Jacket water temperature gauge

    C

    Tachometer

    D

    Exhaust pyrometer


    正确答案: D
    解析: 暂无解析

  • 第12题:

    多选题
    Which two statements are true about the Websense redirect Web filter solution? ()(Choose two.)
    A

    The Websense redirect Web filter solution does not require a license on the SRX device.

    B

    The Websense server provides the SRX device with a category for the URL and the SRX device then matches the category decides to permit or deny the URL.

    C

    The Websense server provides the SRX device with a decision as to whether the SRX device permits or denies the URL.

    D

    When the Websense server does not know the category of the URL, it sends a request back to the SRX device SurfControl server in the cloud.


    正确答案: B,C
    解析: 暂无解析

  • 第13题:

    共用题干
    第三篇

    Listening Device Provides Early Landslide(山崩;地滑;塌方)Warning

    A device that provides early warning of a landslide by monitoring vibrations(振动)in soil is being tested
    by UK researchers,The device could save thousands of lives each year by warning when an area should be
    evacuated(疏散,撤走),the scientists say. Such natural disasters are common in countries that experience
    sudden, heavy rainfall (降雨,降雨量), and can also be triggered by earthquakes and even water
    erosion(腐蚀,侵蚀).
    Landslides start when a few particles of soil or rock within a slope start to move,hut the early stages can
    be hard to spot.Following this initial movement,"slopes can become unstable in a matter of hours or
    minutes,"says Nell Dixon at Southborough University,UK. He says。warning system that monitors this
    movement"might be enough to evacuate a block of flats or clear a road,and save lives".
    The most common way to monitor a slope for signs of an imminent(即将发生的) landslide is to watch
    for changes in its shape. Surveyors can do this by measuring aside directly,or sensors(传感器)sunk into
    boreholes(钻孔,井眼)or fixed above ground can be used to monitor the shape of a slope. Slopes can,
    however,change shape without triggering a landslide,so either method is prone to causing false alarms.Now
    Dixon's team has developed a device that listens for the vibrations caused when particles begin moving
    within a slope.
    The device takes the form of a steel pipe dropped into a borehole in a slope.The borehole is filled in
    with gravel(砾,沙砾,砾石)around the pipe to help transmit high-frequency vibrations generated by particles
    within the slope.These vibrations pass up the tube and are picked up by a sensor on the surface.Software
    analyses the vibration signal to determine whether a landslide may be imminent.
    The device is currently being tested in a 6-metre-tall artificial clay embankment(堤岸)in Newcastle,
    UK.Early results suggest it should provide fewer false positives than existing systems.Once it has been
    carefully and thoroughly tested,the device could be used to create a complete early-warning system for
    dangerous slopes.
    "Locations with a significant risk of landslides could definitely benefit from a machine like this,"says
    Adam Poulter,an expert at the British Red Ci?oss,"As long as it doesn't cost too much."But,Poulter adds
    that an early-warning system may not be enough on its own."You need to have the human communication."
    he says,"Making systems that get warnings to those who need them can be difficult."

    According to the context,what does the word"positives"in the fifth paragraph mean?
    A:Positive electric charges.
    B:Evidences.
    C:Warnings.
    D:Predictions.

    答案:B
    解析:
    短文第一段第一句提到了山体滑坡,此处的自然灾害指的是上文的山体滑坡,故选D。
    短文第二段第一、二句提到“滑坡开始时,一个山坡上的土壤或岩石粒子移动,但初期 可能很难辨认。然后山坡在数小时或数分钟内可能变得不稳固”,故选D。
    短文第三段倒数第二句提到“……任何一种方法(普通方法)都可能产生错误预警”,故 选C。
    根据短文第四段第二句可知,地上凿出的洞而非该装置是用砾石填充的,A项的叙述不 正确。故选A
    此句意为“早期的结果表明它应该提供比现有系统更少的不实证据”,故选B。 positive 意为“确凿的证据”。第5部分:补全短文

  • 第14题:

    共用题干
    第三篇

    Listening Device Provides Early Landslide(山崩;地滑;塌方)Warning

    A device that provides early warning of a landslide by monitoring vibrations(振动)in soil is being tested
    by UK researchers,The device could save thousands of lives each year by warning when an area should be
    evacuated(疏散,撤走),the scientists say. Such natural disasters are common in countries that experience
    sudden, heavy rainfall (降雨,降雨量), and can also be triggered by earthquakes and even water
    erosion(腐蚀,侵蚀).
    Landslides start when a few particles of soil or rock within a slope start to move,hut the early stages can
    be hard to spot.Following this initial movement,"slopes can become unstable in a matter of hours or
    minutes,"says Nell Dixon at Southborough University,UK. He says。warning system that monitors this
    movement"might be enough to evacuate a block of flats or clear a road,and save lives".
    The most common way to monitor a slope for signs of an imminent(即将发生的) landslide is to watch
    for changes in its shape. Surveyors can do this by measuring aside directly,or sensors(传感器)sunk into
    boreholes(钻孔,井眼)or fixed above ground can be used to monitor the shape of a slope. Slopes can,
    however,change shape without triggering a landslide,so either method is prone to causing false alarms.Now
    Dixon's team has developed a device that listens for the vibrations caused when particles begin moving
    within a slope.
    The device takes the form of a steel pipe dropped into a borehole in a slope.The borehole is filled in
    with gravel(砾,沙砾,砾石)around the pipe to help transmit high-frequency vibrations generated by particles
    within the slope.These vibrations pass up the tube and are picked up by a sensor on the surface.Software
    analyses the vibration signal to determine whether a landslide may be imminent.
    The device is currently being tested in a 6-metre-tall artificial clay embankment(堤岸)in Newcastle,
    UK.Early results suggest it should provide fewer false positives than existing systems.Once it has been
    carefully and thoroughly tested,the device could be used to create a complete early-warning system for
    dangerous slopes.
    "Locations with a significant risk of landslides could definitely benefit from a machine like this,"says
    Adam Poulter,an expert at the British Red Ci?oss,"As long as it doesn't cost too much."But,Poulter adds
    that an early-warning system may not be enough on its own."You need to have the human communication."
    he says,"Making systems that get warnings to those who need them can be difficult."

    Why do researchers develop a new device to monitor signs of landslides?
    A:Because the new device can measure the site directly.
    B:Because the new device can be sunk into boreholes or fixed above ground.
    C:Because the common methods can cause false alarms.
    D:Because the common methods are useless.

    答案:C
    解析:
    短文第一段第一句提到了山体滑坡,此处的自然灾害指的是上文的山体滑坡,故选D。
    短文第二段第一、二句提到“滑坡开始时,一个山坡上的土壤或岩石粒子移动,但初期 可能很难辨认。然后山坡在数小时或数分钟内可能变得不稳固”,故选D。
    短文第三段倒数第二句提到“……任何一种方法(普通方法)都可能产生错误预警”,故 选C。
    根据短文第四段第二句可知,地上凿出的洞而非该装置是用砾石填充的,A项的叙述不 正确。故选A
    此句意为“早期的结果表明它应该提供比现有系统更少的不实证据”,故选B。 positive 意为“确凿的证据”。第5部分:补全短文

  • 第15题:

    When installing external SCSI devices, terminators are required on:()

    • A、 the SCSI adapter.
    • B、 each device.
    • C、 the first device.
    • D、 the last device.
    • E、 the servers parallel port.

    正确答案:A,D

  • 第16题:

    Overlay Transport Virtualization (OTV) provides an overlay that enables Layer 2 connectivity between separate Layer 2 domains, while keeping these domains independent and preserving the fault isolation, resiliency, and load-balancing benefits of an IP-based interconnection. Which statements are true about OTV Adjacency Server?()

    • A、 Adjacency Server is required when OTV is deployed with unicast-only transport.
    • B、 Adjacency Server is required when OTV is deployed with multicast-enabled transport.
    • C、 Each OTV device wishing to join a specific OTV logical overlay needs to first register with the Adjacency Server.
    • D、 Each OTV device trying to join a specific OTV logical overlay needs to be configured as an Adjacency Server.

    正确答案:A,C

  • 第17题:

    When using Device Manager, a red ‘X” indicates which of the following?()

    • A、Device is disabled
    • B、Device conflict
    • C、No device driver found
    • D、Device has not been digitally signed

    正确答案:A

  • 第18题:

    While configuring a new adapter using cfgmgr, an administrator receives a warning message indicating that some device packages are not installed. Additionally, the adapter displays in the Defined state. Which command will resolve the issue and make the adapter available?()

    • A、shutdown -Fr
    • B、cfgmgr -i <lpp_source>
    • C、mkdev -l <device_name>
    • D、mknode /dev/<device_name>

    正确答案:B

  • 第19题:

    Which two statements are true regarding an Ethernet collision domain?()

    • A、The likelihood of collisions occurring increases when a switch is used.
    • B、The likelihood of collisions occurring increases when a hub is used.
    • C、If a hub is used, the collision domain is limited to each device and the hub.
    • D、If a switch is used, the collision domain is limited to each device and the switch.

    正确答案:B,D

  • 第20题:

    You have a server that runs Windows Server 2003 Service Pack 2 (SP2). You have a third-party hardware device installed. The device uses a third-party driver. The device works properly. The driver’s hardware manufacturer provides a new device driver. You update the device driver, but the device fails to work. You need to ensure that you can use the new hardware device. What should you do? ()

    • A、Connect to Windows Update and install all driver updates.
    • B、From the properties of the device, select Roll Back Driver.
    • C、From Device Manager, uninstall the device and then restart the server.
    • D、From Device Manager, disable the device and then click Scan for hardware changes.

    正确答案:B

  • 第21题:

    单选题
    Which device provides the main means in the GMDSS for locating ships in distress or their survival craft().
    A

    Radio direction finder

    B

    Satellite EPIRBs

    C

    MF/HF DSC

    D

    VHF homing device


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    Which statement is true about SurfControl integrated Web filter solution?()
    A

    The SurfControl server in the cloud provides the SRX device with the category of the URL as well as the reputation of  the URL. 

    B

    The SurfControl server in the cloud provides the SRX device with only the category of the URL.

    C

    The SurfControl server in the cloud provides the SRX device with only the reputation of the URL.

    D

    The SurfControl server in the cloud provides the SRX device with a decision to permit or deny the URL.


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    The cisco wireless location appliance provides an audit trail for each device tracked for up to how many days?()
    A

    45

    B

    60

    C

    15

    D

    30


    正确答案: D
    解析: 暂无解析