试题与答案

用电火花点燃甲烷和空气的混合物时,当点火能量为0.18mJ,该混合气体便着火。

题型:判断题

题目:

用电火花点燃甲烷和空气的混合物时,当点火能量为0.18mJ,该混合气体便着火。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:把人类社会等同于生物有机体的社会理论。它是19世纪下半叶在生物进化论影响下形成的社会思潮。

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题型:单项选择题

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Which of the following would be a determinant as to what people find stressful

A.Personality.

B.Education.

C.Marital status.

D.Shoe size.

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