1928年毛 * * 在《土地法》中指出：“没收一切土地归苏维埃政府所有，用下

正常分娩胎膜自然破裂多在（）。

A.不规律宫缩开始后

B.第一产程，宫口近开全时

C.第二产程早期

D.有规律宫缩开始

E.宫口开大4cm时

水土流失严重，地表沟壑纵横的高原是（　　）

A．内蒙古高原

B．黄土高原

C．云贵高原

D．青藏高原

一个口袋里装有8个白球和3个红球，从中任意摸出一个球，那么摸出白球的可能性是______，摸出红球的可能性是______．

As early as his second film, Chaplin had developed his own manner of acting, the one that ________

world famous.   [      ]

A. would become

B. had become

C. was to become

D. became

在/etc/passwd文件中，每一行用户记录包括哪些信息？彼此如何分开？