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【单选题】
基极电流 i B 的数值较大时,易引起静态工作点 Q ( )。A.
接近截止区
B.
接近饱和区
C.
进入 死区
D.
不会受到影响
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【简答题】高频保护的保护范围是哪里？
【简答题】live famous appear quality1. Judging from his , he seems to be rich.2. Kate is a lovely and girl.3. He doesn't care about and wealth.4. We should improve the of living.A. appearanceB. livelyC. fam...
【简答题】单句改错 1. In the exams , beautiful and neatly handwriting is beneficial to us students . 2. Knowing that the little girl didn't come to school , I can't help wonder what happened to her . 3. Judging fro...
【简答题】离合器主动部分包括___、压盘、离合器盖。
【单选题】Judging from his face, the computer hehas just
A.
3. Judging from his face, the computer hehas just bought______________ his needs. A. has
B.
feels
C.
contains
D.
satisfies
【简答题】视听说1-2 听力1 1. Why did Maria get angry with Jack? 2. Judging from the dialog, who is Mr. Johnson most likely to be? 3. What does Maria advise Jack to do? 4. Why does Jack want to pay for the damage?
【单选题】对于高频闭锁方向保护,在高频保护的保护范围外发生故障时,如果这时高频通道发生故障,则( )。
A.
线路近故障侧的高频保护容易误动。
B.
线路远离故障侧的高频保护容易误动。
C.
高频保护不会误动。
D.
高频保护会拒动。
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