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【单选题】
电路分析计算,如图2所示,已知电路参数:Vcc = 12v,R1=500k,R2=2k,R3=10k,C1=100μF,C2=100μF,三极管Q1的β=150。计算IB、IC、IE、UCE分别是( )。【图片】
A.
0.022A , 3.3A, 3.322A, 5.4 V
B.
0.015mA , 1.2mA, 1.115mA, 9.5 V
C.
0.022mA , 3.3mA, 3.322mA, 5.4 V
D.
0.22mA ,  33mA, 33.22mA, 1.4 V
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参考答案:
举一反三
【简答题】repair the computer
【简答题】朗读单词: repair computer serve customer teacher a little
【单选题】—When could you have a meal with me ? —I’d like to go whenever it is______ to you.
A.
fit
B.
nice
C.
convenient
D.
suit
【单选题】Do you have any hobby _____?
A.
however
B.
whatever
C.
whichever
D.
whenever
【单选题】对下列句中加粗词解释有误的一项是( )
A.
曾枝剡棘:“曾”通“层”。曾枝,那层层枝条。
B.
圜果抟兮:“圜”通“圆”。
C.
有以异兮:异,独特,形容词。
D.
可师长兮:师长,看作师长,名词动用。
【单选题】下列句中加粗词解释有误的一项是( )
A.
秦王亡矢遗镞之费     亡:丢失,失去
B.
追亡逐北,伏尸百万     北:北边的军队
C.
斩木为兵,揭竿为旗     揭:举
D.
序八州而朝同列     序:引、招致
【单选题】You'd better______how to repair computer.
A.
to learn
B.
learning
C.
learn
D.
learnt
【简答题】A.To leave the room. B.To repair the computer by herself. C.To change a computer. D.To ask for help.
【单选题】Whenever you a present, you should think about it from the receiver’s point of view.
A.
bought
B.
have bought
C.
will buy
D.
buy
【单选题】Whenever you have questions in class, first you should _____ your hand , then _____and ask with the permission of the teacher.
A.
rise; raise
B.
raise; rise
C.
raise; raised
D.
rise; rose
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