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How to operate boiler?

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如果________,劳动力的需求量将肯定上升。

A. 实际工资率上升
B. 实际工资率下降
C. 名义工资率上升
D. 名义工资率下降
E. 劳动力供给减少

If an auxiliary diesel engine coolant temperature is higher than normal, but the thermostat is determined not to be defective, you would suspect a/an

A. cavitation erosion in the water jackets
B. excess corrosion inhibitor in the coolant
C. dirty jacket water cooler
D. defective turbocharger

从扫气口可以观察到下列零部件的工作状态______。Ⅰ.活塞环;Ⅱ.活塞顶;Ⅲ.活塞裙;Ⅳ.活塞杆;Ⅴ.缸套内表面。

A. Ⅰ+Ⅲ+Ⅳ+Ⅴ
B. Ⅰ+Ⅲ+Ⅴ
C. Ⅰ+Ⅱ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ+Ⅳ+Ⅴ

当年的实际GDP为9万亿美元,而上年为8.6万亿美元,那么经济增长率为多少?

A. 10.31%
B. 4.65%
C. 5.67%
D. 7.67%
E. 0.4万亿美元

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