泡沫状白带常见（）
A.滴虫 * * 炎
B.霉菌性 * * 炎
C.老年性 * * 炎
D.宫颈糜烂
E.急性盆腔炎
参考答案：A
- It snowed heavily last night. Is everyone m our class here today?
-Yes, and_______ of us was late for school this morning.
A．none
B．neither
C．all
D．Either
中国的王位世袭制创立于( )
A．夏
B．商
C．周
D．秦
