阴道内可见球状物脱出，表面被覆暗红色粘膜，无宫颈口，两侧角部似有小的开口
A．characterB．chokeC．cheekD．cheer
A. character
B. choke
C. cheek
D. cheer
确诊的首选检查是
A. 羊膜囊造影
B. 取血测AFP
C. 腹部平片
D. B超
E. 羊膜腔穿刺
As it turned out to be a small house party, we______have dressed up so formally.
A. mustn't
B. needn't
C. wouldn't
D. couldn't
微信支付 
支付宝支付