A:Welcome to Bibury Systems. B:（）A、 Thank you.B、 That’s Research and Development. C、 No， thank you. D、 Yes.
题目
A:Welcome to Bibury Systems. B:（）
- A、 Thank you.
- B、 That’s Research and Development.
- C、 No， thank you.
- D、 Yes.
A:Welcome to Bibury Systems. B:（）