— David has been in high spirits these days?

— ______ He should win the first prize in the composition test.

A．How come!

B．How is it?

C．Guess what?

D．No wonder!

脊柱疾病常采取

A．强迫停立位
B．强迫俯卧位
C．强迫蹲位
D．强迫坐位
E．强迫仰卧位