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企业经营管理审核包括哪几个方面?

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十九大报告指出,坚持党对人民军队的思想领导。

A. 正确
B. 错误

In an internal combustion engine, which of the devices listed will force the compression rings to seal the compression gases in the space above the piston?()

A. Used of bimetallic piston rings
B. Ring gap pre-tensioning
C. Thermal increase in ring-end clearance
D. Gas pressure acting against the back of the ring

已有铲槽的车轴再次发现裂纹时,该车轴报废。

A. 正确
B. 错误

Um口应用层包括哪些子层()

A. CM
B. MM
C. RR
D. CC

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