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
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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 ?
当活塞产生时,应采用换新的方法处置
A. 环槽根部裂纹
B. 顶部裂纹
C. 冷却面腐蚀
D. 外圆面磨损
1976年4月,国际货币基金组织理事会通过《国际货币基金组织协定第二次修正案》,标志着国际货币体系从此进入了________的时代。