问答题

下列函数中，在(一∞，十∞)内是单调减少的函数是( ).
A.y=(1/2)^x
B. y=x^3
C. y=sinx
D. y=x^2

A.
A.y=(1/2)^x
B.

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单项选择题

听力原文：W: Hello, Joe. Haven't seen you for quite a while. Are you fine?
M: Oh, yes, but luck seems to go against me. I had a car accident, only some minor injuries though.
Q: What happened to Joe?
(17)
A．He was kept in hospital for a long time.
B．He was slightly injured in a traffic accident.
C．He was seriously wounded in a mine explosion.
D．He was fined for speeding.

A.
Q:
B.He
C.
B．He
D.
C．He
E.
D．He
F.

十七大以来，实现科学发展在认识上已经深入人心,但如何实现科学发展，真正把发展落实到实处，进一步解放和发展生产力是摆在地区和企业面前的课题。围绕这一观点某些社会人员展开了讨论。下列观点正确的是：
甲认为现在许多地方都在大量建设高楼大厦，建楼就是发展生产力了;乙认为发展生产力就是发展经济，经济发展了生产力自然就发展了。

A.甲正确，看到了第二产业在生产力中的作用
B.甲错误，将发展生产力简单等同于建设高楼大厦
C.乙正确，看到了经济发展在生产力中地位和作用
D.乙错误，将发展生产力简单等同于发展经济