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【简答题】
如图所示的电路中,已知R1=8Ω,R2=3Ω,R3=6Ω,R4=10Ω,A、B两端的等效电阻RAB为_____。
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举一反三
【单选题】The pinch-off voltage of a JFET is
A.
a negative number
B.
a positive number
C.
zero
D.
depending on the operating condition
【单选题】It is important to remember that when the JFET is used as a voltage variable resistor, which is one of its practical applications, the voltage is ________ and is ________ . ( )
A.
very much greater than; very much greater than
B.
very much less than; very much greater than
C.
very much greater than; very much less than
D.
very much less than; very much less than
【简答题】5 月 4 日,从工商银行取得临时借款 800000 元,存入存款账户。
【单选题】过去五年，脱贫攻坚战取得决定性进展，____贫困人口稳定脱贫，贫困发生率从百分之十点二下降到百分之四以下。
A.
六千多万
B.
七千多万
C.
八千多万
D.
九千多万
【单选题】( )岗位的主要职责是按照计划向有关服务单位购买服务组合成旅游产品,并将游客已购买的旅游产品具体落实,以保证旅游活动的正常运行。
A.
国内组团计调
B.
国内地接计调
C.
出境组团计调
D.
入境接待计调
【单选题】The maximum current in a JFET is defined as IDSS and occurs when VGS is equal to ( ).
A.
zero Volts
B.
pinch-off voltage
C.
a small positive voltage
D.
a voltage greater than the pinch-off voltage
【单选题】It is important to remember that when the JFET is used as a voltage variable resistor, which is one of its practical applications, the voltage VDS is ________ VDS(max) and | VGS | is ________ |VP|.
A.
very much greater than; very much greater than
B.
very much less than; very much greater than
C.
very much greater than; very much less than
D.
very much less than; very much less than
【简答题】How do people do carpooling?
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