有40个气球，其中30%是红色的，其余是黄色的。如果有1/4的黄色气球系了小绳，问没

Woman: Look! What have I got here!
Man: Oh. So you did go to that bookstore!
Question: What did the man assume previously().

A. She would go to the bookstore.

B. She would not go to the bookstore.

C. She would go to the bookstore later.

D. She would go to another bookstore.

在混合式P2P网络中，根据结点的能力可以将结点分为用户结点、搜索结点和______3种类型。

They were surrounded by the enemy, but they________at last from the village. [ ]

A. managed escaping

B. tried to escape

C. managed to escape

D. tried escaping

隧道开挖当围岩自稳时间在12～24h之间必须采用先支护后开挖的措施。( )

党的十七大报告指出：“在初次分配和再分配中都要处理好效率与公平的关系。”下面选项中，对我国社会主义市场经济条件下效率与公平的关系理解不正确的是（）

A.效率是公平的物质前提

B.效率与公平二者具有一致性，又存在矛盾

C.公平是提高效率的保证

D.提高效率会损害公平，讲究公平会降低效率