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问题 单项选择题

反间谍工作坚持（）统一领导，坚持公开工作与秘密工作相结合、专门工作与群众路线相结合、积极防御、依法惩治的原则

A.党

B.国家

C.中央

D.政府

答案

参考答案：C

选择题
根据表格中的数据，可以判定方程ex-x-2=0的一个根所在的区间为（k，k+1）（k∈N）

x

-1

0

1

2

3

ex

0.37

1

2.72

7.39

20.09

x+2

1

2

3

4

5

则k的值为

[ ]

A.-1
B.0
C.1
D.2
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选择题

28. The farm as well as its neighboring hills we once spent so much time ____ on a new look as recently as last year.

A．on having taken

B．has taken

C．on has taken

D．having taken
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