试题与答案

下列图象能正确反映对应变化关系的是 A.向一定量的二氧化锰中加入过氧化氢溶液 B.

题型:选择题

题目:

下列图象能正确反映对应变化关系的是

A.向一定量的二氧化锰中加入过氧化氢溶液B.加热一定量的高锰酸钾固体C.向两份完全相同的稀盐酸中分别加入锌粉、镁粉D.将水通电电解一段时间
 

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析:本题利用概念之间的交叉关系来解题,有2个人只选修逻辑,三个人选修了古典音乐欣赏,属于对立关系,最少要5人;此外,关键要把握住黑龙江人属于北方人,那么最多不能为9人,只能为8人。故选B。

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题型:不定项选择

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A.35.37 

B.35.68 

C.35.96 

D.36.05

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题型:单项选择题

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The Aristotle view of education as a (27) has become the conventionally worthy answer today (28) college presidents and other academic leaders are asked what an education should be. An educated man, says Harvard President Bok, (29) a deep breath, must have a "curiosity in (30) the unfamiliar and unexpected, an open-mindedness in entertaining opposing points of view, (31) for the ambiguity that surrounds so many important issues, and a willingness to make the best decision he can in the fact of uncertainty and doubt."
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A. however B. whereverC. wheneverD. that

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