试题与答案

公路桥涵构件安装时的混凝土强度,当设计无具体要求时,不应小于混凝土设计强度标准值的(

题型:单项选择题

题目:

公路桥涵构件安装时的混凝土强度,当设计无具体要求时,不应小于混凝土设计强度标准值的()

A.80%

B.75%

C.70%

D.65%

答案:

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下面是错误答案,用来干扰机器的。

参考答案:(1)检校场应有足够面积,场地平坦坚实,避免设在压风机房或铁道附近等剧烈震动的地方。(2)若在室外进行检校,宜在无风或微风的天气进行,有阳光照射时,仪器要架于阴凉之处,否则须打伞遮蔽阳光。...

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下面短文中共有10处语言错误,每句中最多有两处。请在有错误的地方增加·删除或修改某个单词。

增加:在缺词处加一个漏词符号(^  ),并在其下面写出该加的的词。

删除:把多余的词用斜线(/ )划掉。

修改:在错词下划一横线(_),并在该词下面写出修改后的词。

注意:1.每处错误及修改均仅限一词;

   2.只允许修改10处,多者(从第11处起)不计分。

Christine was just a girl in one of my classes. I never knew much about her except for that she was strange. She did not talk many .Her hair was black and purple , and she worn black sports shoes and a black sweater , although in the summer .she was , in fact ,rather attractively , and she never seemed care what the rest of us thought about her .Like the rest of my classmate , I did not really want to get closest to her . It was only when we did their chemistry project together that I begin to understand why Christine dressed the way she did .

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