—It's exciting that Shengzhou Ⅶ was set up into space successfully.

—Yes,but it_________ impossible in China in the past.[ ]

A. found  

B. felt  

C. looked  

D. seemed

慢性盆腔炎可表现为（）。

A．青春期后无初潮，逐渐加重的周期性下腹痛

B．初潮后不久，未婚少女的原发性痛经

C．年轻妇女下腹坠痛，月经期显著并伴低热

D．生育年龄妇女腰骶部酸痛，劳累、性交、月经前后加重

E．中年妇女继发性痛经进行性加重