.Mr Smith was __________to hear the _______news that he won the first prize.

A．astonishing ,astonished

B．astonished,astonishing\

C．astonishing,astonishing

D．astonished,astonished

30岁，结婚4年未孕，月经频发，经血量正常。妇科检查：子宫正常大，双附件无异常，基础体温双相。最可能的诊断是：（）

A．排卵期出血

B．无排卵性功血

C．黄体功能不全

D．子宫内膜脱落不全

E．子宫内膜炎