高等院校能灵活有力地组织力量，实现重大科学研究任务。
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科学共同体的分层结构在本质上是一种权威结构。
A. 对
B. 错
--- ____________! Somebody has left the lab door open.--- Don't look at me.
A. Dear me
B. Hi, there
C. Thank goodness
D. Come on
_Hi , jack , how do you find the picture in the museum?-______.
A. Well,Tom told me
B. Very beautiful
C. I found by myself
D. Mike helped me
-Do you know Ana’s telephone number?-____. As a matter of fact , I don’t know any Anna at all.
A. I think so
B. I’ m afraid not
C. I hope so
D. I’d rather not
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