A.while
B.or
C.nor
D.as
第1题:
John's score on the test is the highest in his class, he ______ very hard.
A. must have studied
B. should have studied
C. must study
D. should study
第2题:
第3题:
通过 SQL,从 “actor” 表中选取 "FirstName" 列的值等于"John" 的所有记录的表述正确的是()。
A.SELECT * FROM Actor WHERE FirstName='John'
B.SELECT [all] FROM Actor WHERE FirstName LIKE 'John'
C.SELECT * FROM Actor WHERE FirstName LIKE 'John'
D.SELECT [all] FROM Actor WHERE FirstName='John'
第4题:
You are signing on a deck officer,who will be designated as one of the GMDSS operators,before sailing foreign.Which statement is TRUE ________.
A.He/she must have an STCW certificate endorsed as“Valid for Service on Vessels Operating in the GMDSS System”
B.He/she must present either an FCC-issued license or a Coast Guard-issued license
C.You must consult the“List of Qualifications”on the reverse of his/her FCC-issued license
D.His/her Merchant Mariners Document must have an added endorsement as “Radio Electronics Officer”
第5题:
第6题:
下列选项是正确字典的创建方法的是?
A.dict{}
B.{‘name’:’John’,’age’:25,’sex’:’male’}
C.{‘book’:’python’:’100’’’}
D.(‘name’,’Tom’:’age’,’25’)