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【判断题】
钢筋的应力松弛,在预应力混凝土结构中将导致钢筋和混凝土预应力增加。A.
正确
B.
错误
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举一反三
【简答题】在气动圆管焊接机回路图中,元件1.5的名称及作用分别是什么?
【简答题】单片机 P0 口控制 8 个共阳极发光二极管,通过串行接口读入外部 8 位开关的状态,并用 8 位发光二极管表示按键闭合状态。
【简答题】在气动圆管焊接机回路图中,元件1.02的名称及作用分别是什么?
【简答题】阅读理解。 People know the er of fires. It's good for a family to learn how to prepare for a fire. Here are some suggestions: Put a smoke alarm in the house. Smoke from a fire causes the alarm to go of...
【简答题】It's __ to climb the tall tree, be careful. [ ] A. er B .erous C .busy D .difficult
【单选题】听力原文：M: I think it's high time we turned our attention to the danger of drunk driving now. W: I can't agree with you more. You see, countless innocent people are killed by drunk drivers each year. Wha...
A.
Most people killed in traffic accidents are heavy drinkers.
B.
She does not agree with the man.
C.
Drunk drivers are not guilty.
D.
People should pay more attention to the danger of drunk driving.
【简答题】在气动圆管焊接机回路图中,元件1.6的名称及作用分别是什么?
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