肝的募穴是A．关元B．石门C．京门D．期门E．章门

The Smiths have been married, but have no children of his own.

听句子，缩写原文。（）

A．Many animals and plants would die because they cannot survive the changing environment.

B．Many animals would be slaughtered, since they fail to adapt themselves to the existing outside world.

C．Most peoplewould feel sorry for the destiny of endangered species, if they become extinct on earth.

D．Most species would react fast enough to adapt themselves to the ever-changing conditions of nature.

作温CFT试验诊断传染病时。

温CFT的反应温度是（）。

A.65℃

B.56℃

C.37℃

D.24℃

E.4℃

国家助学贷款的借款学生自取得毕业证书之日起，下月1日开始归还贷款利息，并可以选择在毕业后的( )个月内的任何一个月开始偿还贷款本息。

A．6
B．12
C．24
D．36

小型隔爆电器127V时绝缘不低于（）MΩ.

A.5

B.2

C.1

D.O.5