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【单选题】
一般轴类零件常用中碳钢，如（ ）钢。A.
Q235-A
B.
45#
C.
38SiMnMo
D.
3Cr13
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反馈参考答案：
举一反三
【简答题】35-44
【简答题】按从大到小排列各数。 31，72，24，35，58，96，66，44
【单选题】Which of the following factors did not contribute to the London dialect becoming standard English?
A.
The court moved from Winchester to London.
B.
The dialect was used by educated people.
C.
The dialect remained unaffected by foreign trade.
D.
The dialect was gradually spoken by more and more people.
【单选题】London dialect was once disseminated throughout the country NOT because London was ——.
A.
a commercial center
B.
a political center
C.
a printing center
D.
a linguistic center
【简答题】竖式计算 62×77= 47×34= 18×90= 35×23= 65×44= 70×36=
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