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【单选题】
当只考虑求解复杂电路中某一条支路电流电压的情况，采用( )比较方便A.
支路电流法
B.
回路电流法
C.
定理
D.
叠加原理
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【简答题】信号控制和停车让行控制管制方式选择的方法是什么?
【单选题】The author uses ' television advertising' as an example to show that______.
A.
the commercial world are contributing to the increased violence in real life
B.
computer and online games are not the only cause of increased violence in real life
C.
there is little link between computer games and increased violence in real life
D.
other factors must be considered as possible causes of violence in real life
【单选题】What does Jeremy Gifkin and Ted Howard's statement imply？
A.
The commercia! applications of genetic engineering are inevitable．
B.
America will depend on other countries for biological progress．
C.
Americans are proud of their computers, automobiles and genetic technologies．
D.
The potential application of each new genetic advance should be controlled．
【单选题】下列关于销售毛利率说法错误的是（）。
A.
是企业销售净利率的最初基础
B.
表示每一元主营业务收入扣除主营业务成本后，有多少钱可以用于各项期间费用和形成盈利
C.
指企业营业利润与主营业务收入的比率
D.
反映了企业产品或商品销售的初始获利能力
【单选题】The result of the research for an easily digestible fat turned out to be______.
A.
commercially useless
B.
just as anticipated
C.
somewhat controversial
D.
quite unexpected
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