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【单选题】
度转位是( )A.
大七度
B.
度
C.
增七度
D.
减七度
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反馈参考答案：
举一反三
【单选题】The ______ of seawater into drinking water is a complicated problem.
A.
conversion
B.
conjecture
C.
concession
D.
contraction
【简答题】试述母乳喂养的优点。
【简答题】试述母乳喂养的优点。
【单选题】___ with a gradual rise of seawater, some nations in the Pacific are considering moving in the near future. [ ]
A.
Facing
B.
To face
C.
Faced
D.
Being faced
【简答题】裂解气分离是指用精馏分离法把碳一馏到碳五馏分逐一分开,将产品()、()提纯精制的过程。
【单选题】The exposed portion of the outboard propeller shaft is protected against seawater corrosion by____
A.
A layer of oxidation formed when the metal of the shaft is exposed to seawater
B.
A covering of plastic, rubber, or shrunk-on compositon sleeve
C.
A corrosion-resistant paint
D.
A heavy lubricant
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