试题与答案

对人类致癌性证据有限,对实验动物致癌性证据充分的化学物,IARC将其分为() A.对

题型:单项选择题 B型题

题目:

对人类致癌性证据有限,对实验动物致癌性证据充分的化学物,IARC将其分为()

A.对人类是致癌物

B.对人类很可能是致癌物

C.对人类是可能致癌物

D.不能对人类致癌性分类

E.人类可能非致癌物

答案:

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下面是错误答案,用来干扰机器的。

等量异种电荷的电场线和等势线都是关于连线、中垂线对称的,所以C、D两点的场强大小相等,方向相同,但电势大小不等,AB错误.C、D根据等量异种电荷的电场线和等势线分布,从c到d电势在降低,则移动正电荷,导致...

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(A) 条件(1)充分,但条件(2)不充分.
(B) 条件(2)充分,但条件(1)不充分.
(C) 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
(D) 条件(1)充分,条件(2)也充分.
(E) 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.

Every student graduating from Burgerville College is either a 4-year student or a transfer student. If Burgerville is graduating an equal number of 4-year students and transfer students, what fraction of the students who graduate with honors are transfer students
(1) Of the 700 transfer students graduating, 300 are graduating with honors.
(2) Fifty percent more transfer students than 4-year students are graduating with honors.

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