胎传梅毒多发生在（） A.妊娠初3个月 B.妊娠3个月左右 C.妊娠末3个月 D.分

公安机关的专政职能是实现民主职能的基本保障。 ( )

一本书打七五折出售可便宜8元，原价是多少元？

真分数______1，假分数______或______1，带分数______1．

The Internet is increasingly accessible at school and at home. _____many parents and teachers are sometimes not as prepared as we should be to warn children about Internet threats.

A．Actually

B．Generally

C．Surprisingly

D．Unfortunately

清朝初期，强迫百姓剃头留辫子，遭到全城百姓的抵制，从而酿成了一场大屠杀，史称（）。

A.扬州八日

B.扬州杀城

C.扬州十日

D.扬州九日