题目内容

中压容器使用的压力表精度不低于（）级

A. 0.4
B. 1
C. 1.6
D. 2.5

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A. 正确
B. 错误

A. overheating of the lube oil
B. over-speeding of the motor
C. wear on the braking system
D. damage to the teeth

A. 3
B. 3.5
C. 4
D. 5