题目内容
去除油中的杂质
A. Remove water from oil.
B. Remove impurities from oil.
C. Treat oily water.
D. Clean water.
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机器将会冒白烟。
A. The engine will exhaust black smoke.
B. The engine will exhaust yellow smoke.
C. The engine will exhaust white smoke.
D. The engine will exhaust blue smoke.
减少磨损故障。
A. Remove water from oil.
B. Good for combustion.
C. Reduce wear failures.
D. All of the above.
在修船期间。
A. When it was in good order.
B. During the repair of the ship.
C. After it was repaired.
D. Two hours later.
它经常出故障。
A. Because it was foreign-made.
Because it was good.
C. It has run for 1,000 hours.
D. It was often out of order.
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