— Did you hear about the air crash? I fe

题型:选择题

问题:

— Did you hear about the air crash? I feel so lucky!

— Yes, If you _____ that flight, I _____ speaking to you now. [ ]

A. were taking; wouldn't be        

B. took; wouldn't have been

C. had taken; wouldn't be          

D. had taken; wouldn't have been

考点:虚拟语气
题型:选择题

183的9倍是______,8个194是多少______.

题型:选择题

当孔口、管嘴出流的作用水头H和管(孔)径d分别相等时,则必有()。

A.Q孔口>Q管嘴,v孔口>v管嘴

B.Q孔口<Q管嘴,v孔口>v管嘴

C.Q孔口>Q管嘴,v孔口<v管嘴

D.Q孔口<Q管嘴,v孔口<v管嘴

题型:选择题

不同年级的大学生在思想特点上存在哪些共性和差异性?

题型:选择题

“亚细亚生产方式”这个概念是谁提出并经常使用的:()

A、马克思.韦伯

B、哈耶克

C、卡尔.马克思

D、凯恩斯

题型:选择题

下列哪种污染可能影响渗透液的灵敏度()

A.酸

B.水

C.盐

D.以上都是

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