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【单选题】
调整共射放大电路的静态工作点时,只需调整()大小即可改变。A.
集电极负载电阻
B.
发射极电阻
C.
基极上偏置电阻
D.
以上各电阻都可以
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举一反三
【单选题】Which of the following activities activities does not involve writing？
A.
Completion according to outlines.
B.
Completion with multiple choices.
C.
Completion according to topic sentences.
D.
Completion according to the brainstormin
【多选题】Which of the following are communicative activities?
A.
Problem-solving activities.
B.
Dialogues.
C.
Information-gap activities.
D.
Role-plays.
E.
Debates
【多选题】Which of the following are included in communicative activities?
A.
information gap activities
B.
problem-solving activities
C.
discussions and debates
D.
interviews and fluency-focused games
【单选题】Which of the following activities was the responsibility of the federal government in the nineteenth century?
A.
Controlling of the manufacture of gunpowder.
B.
Determining the conditions under which individuals worked.
C.
Regulation of the supply of money.
D.
Inspection of new homes built on western lands.
【多选题】关于糖皮质激素对代谢影响的描述,正确的是( )
A.
促进葡萄糖利用,促进蛋白质合成
B.
促进葡萄糖利用,促进蛋白质分解
C.
抑制葡萄糖利用,促进蛋白质分解
D.
抑制葡萄糖利用,促进蛋白质合成
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