Excessive oil foaming in the crankcase of a refrigeration compressor can result in ().
A. overheated compressor bearings
B. excess lube oil viscosity
C. carbon deposits on the compressor piston rings
D. wax crystals forming in the lubricant
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在日本,政府成立的“食品安全委员会”是由科学家和专家组成的。
A. 正确
B. 错误