题目内容

What is the primary disadvantage of a permanent chain chaser system?（）

A. It requires anchor handling boats with more horsepower
B. Chain chasers work in shallow water only
Chain chasers will not work with piggyback anchors
D. It takes longer to deploy anchors using chain chaser

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电铲转载的优缺点是什么？

养血安神糖浆的主要功能为（）

A. 滋阴养血、宁心安神
B. 益气敛阴、安神镇静
C. 补心养肝、安神益智
D. 益气补肾、镇静安神

电力机车总风缸最低安全工作风压不能低于（）。

A. 350kPa
B. 400kPa
C. 450kPa
D. 500kPa

In painting a lifeboat following its overhaul，which parts must be painted bright red?（）

A. the top 2-1/2 inches of each side
B. the releasing gear lever
C. the fuel tanks
D. the thwart