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【多选题】
属于性能与功能参数的是( )。A.
温度
B.
振动
C.
配合紧度
D.
压力
E.
零件尺寸
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【单选题】若将 1=10sin314t+90o）A，2=10sin(314t-90o)A, 3=10sin314tA三个电流分别通过同一个电阻，通电时间相等，其发热量最大的是 （ ）。
A.
（A）1
B.
（B）2
C.
（C）3
D.
（D）三者相等
【单选题】听力原文：It is said that we can judge one by the company he keeps, but it can't be applied to everyone. What does the speaker imply?
A.
Sometimes we can judge people easily.
B.
We cannot judge people theoretically.
C.
We cannot judge people financially.
D.
We can always apply theory to practice.
【简答题】A．We can't judge buildings by the ancient standards. B．We can't judge all the buildings by the ancient standards. C．We can't judge all the modern buildings by the ancient standards. D．We can't judge m...
【单选题】若将1=10sin（314t+90o）A，2=10sin（314t-90o）A，3=10sin314tA三个电流分别通过同一个电阻，通电时间相等，其发热量最大的是（）。
A.
1
B.
2
C.
3
D.
三者相等
【简答题】To judge how serious a flood is, we have to consider the volumes of rivers and streams in an area and ______.
【单选题】14)若将 1=10sin314t+90o）A，2=10sin(314t-90o)A, 3=10sin314tA三个电流分别通过同一个电阻，通电时间相等，其发热量最大的是 （ ）。
A.
（A）1
B.
（B）2
C.
（C）3
D.
（D）三者相等
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