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共射极放大电路的电源电压是通过集电极电阻RC加到集－射极之间的，集电极的静态工作点电压UCEQ等于电源电压UCC减去集电极电阻RC上的电压。

A.正确
B.错误

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1) ______ the Communicative Approach2) ______ the Audiolingual Method3) ______ the Oral Approach4) ______ the Cognitive Approach5) ______ the Natural Approacha) It emphasizes the provision of situation in the presentation of a new structure and in dealing with the integration of vocabulary work.b) Phonetic systems led to the higher level of phrases, clauses and sentences.c) Students should be allowed to create their own sentences based on an understanding of a rulE.d) Language learning is viewed as mastery of structures by stages.e) Wilkins' s book Notional Syllabuses (1976) had a significant impact on its development.1)

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6.判断是否是正确的标识符：MYVARIABLE （） A、正确 B、错误

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