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脉冲电路有哪些主要优点?

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Which of the following problems can cause an above normal air temperature to develop in the intake manifold of a turbocharged and after-cooled diesel engine?()

A. Faulty turbocharger turbine diffuser ring
B. Faulty turbocharger compressor ring
C. Insufficient cooling water flow
D. Clogged air intake filter

电容器充放电过程的快慢由哪些因素决定?

任何组织和个人均不得披露未成年人的个人隐私。

A. 正确
B. 错误

纵剪过程中涨力是怎样产生的?何为前涨力,何为后涨力?

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