—Jim, listen! Who’s playing the guitar?

The fishing village where they went on a journey lies in           is now part of Hainan province.

A．where

B．what

C． which

D．that

I have P. E.________ 10 o'clock ________ the morning.    [ ]

A. in; on        

B. at; in    

C. at; on        

D. on; to

某框架梁柱节点，上下柱端弯矩设计值之和为480k，左右两侧框架梁的线刚度比值为5：7，则左端梁端截面的弯矩设计值为（）k。

A.160

B.200

C.280

D.320