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【单选题】
当晶体三极管的发射结正偏,集电结反偏时,该管工作在( )。A.
放大状态
B.
饱和状态
C.
截止状态
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【简答题】The TV set he _________ workswell now. A. hasrepairing B. having repaired C. has beenrepaired D. has had repaired
【简答题】实二次型的规范形由 唯一确定
【单选题】If your voice is drowned out by the sound of the TV set, what should you do?
A.
turn off the TV set
B.
turn up the TV set
C.
turn down the TV set
D.
A or C
【简答题】下面能让线程停止执行的有(多选)( )A. sleep(); B. stop(); C. notify(); D. synchronized(); E. yield(); F. wait();
【简答题】下面能让线程停止执行的有(多选) ( )A. sleep(); B. stop(); C. notify(); D. synchronized(); E. yield(); F. notifyAll(); G. wait();
【简答题】采用非线性校正的控制系统如图所示，试用相平面法分析，在原来的线性系缔的基础上，采用非线性校正改善系统的动态响应品质。
【简答题】下面能让线程停止执行的有哪些 A. B. C. D. E. F. G.A. sleep();B. stop();C. notify();D. suspend();E. yield();F. wait();G. notifyAll();
【单选题】Such electron tubes ______ in a radio set are also found in a TV set.
A.
that we use
B.
as we use
C.
as we use them
D.
that we use them
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