【单选题】面临的问题一般会经常性重复出现,解决这类问题的方法有先例可循,可沿用以往的解决方法。按照决策的重复性分类,这属于?
【单选题】(2017年)甲砂石企业开采砂石1 000吨,对外销售800吨,移送50吨砂石继续精加工并于当月销售。已知砂石的资源税税率为4元/吨,甲企业应当缴纳的资源税的下列计算中,正确的是( )。
【单选题】The input impedance of the emitter-follower is relatively ( ), and the output impedance is extremely ( )
【单选题】甲砂石企业开采砂石1 000吨,对外销售800吨,移送50吨砂石继续精加工并于当月销售。已知砂石的资源税税率为4元/吨,甲企业应当缴纳的资源税的下列计算中,正确的是
【判断题】神经学家认为三岁之后人的大脑是不会发生变化的。()
【单选题】患者,女,62岁,因心力衰竭入院,遵医嘱绝对卧床休息,现4天未排大便,感到腹胀不适。下列护理诊断中,正确的是
【简答题】For the following network, d etermine the input impedance, output impedance and the voltage gain.
【单选题】The input impedance of a voltage-shunt feedback amplifier ( ) the input impedance of its op-amp.
A.
is increased when compared to
B.
is decreased when compared to
C.
is reduced by half when compared to
【单选题】In the cascade system, the input impedance depends on the ( ) stage and the output impedance depends on the ( ) stage.