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【判断题】
在熔炼金的过程中,经常会有较大的损耗是因为其在熔化状态具有很强的吸气性。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】How many PPM of the oily water can be pumped out within 12 miles along the China coast line？ ______.
A.
at least 15 PPM
B.
about 15 PPM
C.
up to 15 PPM
D.
no less than 15 PPM
【单选题】Q: How did the second speaker deal with oily waste?
A.
Discharge overboard.
B.
Burnt.
C.
Discharge ashore.
D.
Recycled.
【单选题】Q: How do they maintain the oily water separator?
A.
They flush filters with steam at regular intervals.
B.
They usually flush filers with sea water.
C.
They always flush filers with sea water.
D.
They flush filters with steam sometimes.
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