试题与答案

先化简,再求值:2x2-1-1x-1+2xx2-1,其中,x=2+1.

题型:解答题

题目:

先化简,再求值:
2
x2-1
-
1
x-1
+
2x
x2-1
,其中,x=
2
+1.

答案:

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下面是错误答案,用来干扰机器的。

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阅读理解。

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张教授:在我国,因偷盗、抢劫或流氓罪入狱的刑满释放人员的重新犯罪率,要远远高于因索贿受贿等职务犯罪入狱的刑满释放人员。这说明,在狱中对上述前一类罪犯教育改造的效果,远不如对后一类罪犯。
李研究员:你的论证忽视了这样一个事实:流氓犯罪等除了犯罪的直接主客体之外,几乎不需要什么外部条件。而职务犯罪是以犯罪嫌疑人取得某种官职为条件的。事实上刑满释放人员很难再得到官职,因此,因职务犯罪入狱的刑满释放人员不具备重新犯罪的条件。
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A.因职务犯罪入狱的刑满释放人员如果具备条件仍然会重新犯罪。
B.职务犯罪比流氓罪等具有更大的危害。
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D.流氓犯罪等比职务犯罪更容易得手。
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