问题
单项选择题
不重要又受力较小的轴,可选用()制造。
A、40Cr
B、20Cr
C、青铜
D、Q235
答案
参考答案:D
不重要又受力较小的轴,可选用()制造。
A、40Cr
B、20Cr
C、青铜
D、Q235
参考答案:D
完形填空。 | |||
Some one says," time is money." But I think time is 1 important than money. Why? Because when money is spent, we can get it back. however, when time is 2 , It'll never return. That is 3 we must't waste time. It goes without saying that time is usually limited. Even a second is very important. we should make full use of our time to do 4 useful. But it is a pity that there are a lot of people who don't know the important of time. They 5 their limited time smoking, drinking and playing cards. They don't know that wasting time means wasting part of their own 6 . In a word, we should save time. we shouldn't leave today's work for tomorrow, Remember: we have no time to lose. | |||
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Directions:Write an English composition according to the instructions given below in Chinese. 李平因在学校使用手机被学校处分,他感到很困惑,写信向你求助。请根据以下结构提示给李平回信。开头结尾已给出。
Dear Li Pi ![]() Your letter reached me yesterday. It is said in your letter that you are punished for using a cell-phone. _________________________________________________________________ ___________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________ ______________________________________It is right for school to prevent you from using cell-phones in school. Yours ever, |