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【单选题】
碳钢常见的杂质元素中，（ ）元素溶入铁能使钢产生冷脆现象。A.
Si
B.
Mn
C.
S
D.
P
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反馈参考答案：
举一反三
【简答题】描写北固山美景的名人作品中最著名的是谁的作品?其作品叫什么名字?
【单选题】And now we know so much more about why good cooking is as good as it is.
A.
The writer is using descriptive language that implies the author's bias.
B.
The writer is using adverbs to emphasize particular points.
C.
The writer is claiming that the reader shares the author's bias.
【单选题】In Russia today, the younger people are adapting far more readily to the turmoil of the emerging market system.
A.
change
B.
chorus
C.
chaos
D.
chores
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