After Venus passes the point of greatest elongation east in its orbit，the first position in which the elongation will be zero is（）.
A. superior conjunction
B. inferior conjunction
C. opposition
D. None of the above; the elongation will never be zero
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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
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
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