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【单选题】
钢材屈服点f y 的高低反映材料( )。A.
受时的最大承载能力
B.
受时的最大变形能力
C.
受动荷时的最大承载能力
D.
受时发生塑性变形前的承载能力
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【简答题】阅读短文，用括号中所给词的适当形式填空。 One day, Mr. Smith 1 (go) to a dinner party. He was wearing very old clothes. He came into the room. But people in the room 2 (not look )at him. They didn't ask him 3 (sit )at the...
【简答题】用括号中所给词的适当形式填空。 1. He is going ______ (see) a Jackie Chan's film. 2. Would you like ______ (play) football? 3. It's raining outside. Let's ______ (stay) at home. 4. My friends ask me ______ (go) to a ...
【简答题】已知不等式 对 恒成立，则 。
【简答题】）函数 ． 求证：不等式 对于 恒成立
【简答题】阅读短文，用括号中所给词的适当形式填空。 Mr. Gao lives in a town. When he 1 (be) twenty-five, his son was born (出生). He called him Gao Ling. The little boy is very clever and his parents 2 (love) him very much. It's Sept...
【简答题】用括号中所给词的适当形式填空。 1. We forgot_____ (tell) him the news, so he didn’t know at all. 2. We hope _____ (see) you soon. 3. Put _____(they) on the sandwich ，please. 4. I think I’m_____ (outgoing) than Sam . ...
【简答题】，不等式 恒成立的否定是 ▲
【简答题】若不等式 对于 恒成立，则 范围
【简答题】用括号中所给词的适当形式完成句子。 小题1:After a short (silent) ,he went on speaking. 小题2:The young film star’s (die) is a great loss to the film industry. 小题3:There is so much er here that nobody (dare) to go out a...
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