题目内容

STCW78/95 Convention states that the officer in charge of the engineering watch is the representative

A. ship-owner's
B. master's
C. chief engineer's
D. manager's

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价格水平的上升使实际GDP的需求量________(下降;上升),同时________(沿着总需求曲线运动;总需求曲线移动)。预期未来收入的增加使得AD曲线________(向左;向右)移动。税收减少使得AD曲线________(向左;向右)移动。外国收入减少使得AD曲线________(向左;向右)移动。

When received the order "Finished With Engine", which of the following operations is wrong?

A. stop the L.O pump, S.W pump, jacket water cooling pump immediately
B. stop the F.O booster pump
C. engage the turning gear, turn the main engine
D. open the main engine scavenge air trunk's drain cocks

经济周期________。

A. 是生产和就业规则的上下运动
B. 是生产和就业不规则的上下运动
C. 是价格规则的变动
D. 是价格不规则的变动
E. 是利率不规则的上下运动

what is the use of a purifier ?explain the purpose of a gravity disc ?

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