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问题 问答题 计算题

要求制作执行器底座2个，均采用双立柱槽钢，上底座与底板用ζ12毫米钢，板座总高750毫米，试计算需要槽钢多少米？

答案

参考答案：

（0.75-2*0.012）*2*2=2.9（米）

改错题

此题要求改正所给的短文中的10处错误。要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏词符号（∧），并在该词下写出该加的词。

删除：把多余的词用（∕）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改10处, 多改不计分。

Today I together with my classmates went to climb the Yandang Mountain.Early in morning we started out and arrived there two hours late.Then we begin to climb.The mountain was high and some of us got tiring soon, and all of us were very excited.We cheered happily when we got the top.We had our lunch there and had enjoyed ourselves very much.Unfortunately,when we walked down the hill,we were caught by a rain. We remained calmly,shared umbrellas and raincoats and walked carefully.Finally we both reached the parking lot safely.In spite of the unexpected rain and wind,we had a good time.
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选择题

下列各句没有词类活用现象的一句是[ ]

A．君臣不惠忠

B．是以仁者非之

C．越王击金而退之

D．乃若夫少食恶衣、杀身而为名

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