题目内容

简述产业资本循环连续性的条件。

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岩屑杂砂岩

“手指呼唤作业”应统一采用右手。

A. 正确
B. 错误

Foaming of the oil in a refrigeration compressor crankcase is caused by ().

A. refrigerant boiling out of solution from the lube oil
B. liquid refrigerant flooding the compressor and system
C. lube oil viscosity being reduced by refrigerant dilution
D. compressor suction pressure suddenly increasing

金属色漆调配时调整侧视的效果可以尽量多使用不透明的色母。

A. 正确
B. 错误

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