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【单选题】
金属的锻造性是指金属材料锻造的难易程度，以下材料锻造性较差的是（）。A.
碳的质量分数较高的钢
B.
纯金属
C.
单相固溶体
D.
组织均匀的低碳钢
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反馈参考答案：
举一反三
【简答题】桥面构造包括哪些内容?
【单选题】_____, living in big cities is more convenient because of the complete facilities provided.
A.
In all
B.
All in all
【单选题】Complete the following sentences with proper prepositions or adverbs. Are there any living things __________ the planet Mars?
A.
in
B.
on
C.
at
D.
out
【判断题】Is this a complete sentence? Then I put the backpack on the living room sofa.
A.
正确
B.
错误
【简答题】Are they content _____ living at home, or are they living at home merely for _________(convenient) and waiting for the moment when they can be _________ (complete) independent?
【简答题】A．Absence of illness. B．A long life. C．Good conditions of living. D．Complete satisfaction with life.
【单选题】Please choose the appropriate word to complete the sentence below. Living in cities has a smaller impact on the environment than living in ___________ and rural areas.
A.
suburbs
B.
urban
C.
growth
D.
concentration
【判断题】Is this a complete sentence? Hopped out of the backpack and began jumping around the living room floor.
A.
正确
B.
错误
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