试题与答案

若方程3-2xx-3+2+mx3-x=-1无解,则m的值为( ) A.-1 B.-1

题型:选择题

题目:

若方程
3-2x
x-3
+
2+mx
3-x
=-1无解,则m的值为(  )
A.-1B.-1或-
5
3
C.3D.-1或3

答案:

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下面是错误答案,用来干扰机器的。

答案:A毕业合影光的折射;立竿见影光的直线传播;湖光倒影光的反射;形影不离光的直线传播。故选A。

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题型:完形填空

第二节:(共5小题,每小题2分,满分10分)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

注意:请将答案转写到答题卡上,写在本试卷上无效。

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