基本共射放大电路中影响高低频率响应的主要因素是什么

影响高频响应的应该是晶体管的高频特性和线路分布电容，影响低频特性的应该是发射机旁路电容。

对，耦合电容对低频起关键作用，比如音频的输入端
而结电容对高频影响大，比如无线发射电路，

25.b) are advised not to give them aspirin26.C) the US is the major source of lead pollution in arctic snow
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27.D) was enforced by law28.C) By comparing the chemical compositions of leaded gasoline used in various countries.
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29.A) forests get rid of lead pollution faster than expected30.b) still consider lead pollution a problem

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31.A) temporary

32.b) particular

33.D) rank

34.C) involving

35.b) affection

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36.D) contributed

37.b) inference

38.A) afford

39.C) resign

40.D) career

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41.A) exhausted

42.b) accompany

43.D) put aside

44.D) exception

45.C) insured

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