题目内容

After installing a new hydraulic pump in a system, what special attention should be given

A. The relief valves in the system should be readjusted
B. The filters and strainers should be checked frequently
C. All system pressure should be readjusted
D. The system should be drained and renewed with a fluid of different operating characteristics

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政府增加税收，对总需求会产生什么样的影响？

如果石油的价格上升，________。

AD曲线向右移动，实际GDP增加，价格水平上升
B. AS曲线向左移动，价格水平上升，实际GDP下降
C. AD曲线和AS曲线向左移动，实际GDP下降，价格水平上升
D. AD曲线和AS曲线向右移动，价格水平上升，实际GDP下降
E. AS曲线向左移动，价格水平上升，实际GDP上升

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The additional mark______in the Classification Certificate for Machinery represents the

A. BRC
B. MCC
C. AUT-0
D. AUT-l

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If clearance between a piston and the cylinder wall is excessive, piston slap will occur.

A. alternation of side thrust
B. a breakdown of the lube oil film on the cylinder
C. worn piston boss piston pin bearings
D. fluctuating gas pressure in tile combustion space

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After installing a new hydraulic pump in a system, what special attention should be given

A. The relief valves in the system should be readjusted B. The filters and strainers should be checked frequently C. All system pressure should be readjusted D. The system should be drained and renewed with a fluid of different operating characteristics

政府增加税收，对总需求会产生什么样的影响？

如果石油的价格上升，________。

The additional mark______in the Classification Certificate for Machinery represents the

If clearance between a piston and the cylinder wall is excessive, piston slap will occur.

A. The relief valves in the system should be readjusted
B. The filters and strainers should be checked frequently
C. All system pressure should be readjusted
D. The system should be drained and renewed with a fluid of different operating characteristics