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【判断题】
单孔喷嘴与双重喷嘴切割厚碳钢材料时,而从中央到下部,则是双重喷嘴的切割粗糙度比较好。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Look! The clock has stopped. Maybe there's ____ wrong with it.
A.
eveything
B.
something
C.
anything
D.
nothing
【单选题】Look! The clock has stoppeMaybe there's_______ wrong with it.
A.
everything
B.
something
C.
Anything
D.
nothing
【单选题】Look! The clock has stopped. Maybe there's ____ wrong with it.
A.
everything
B.
something
C.
anything
D.
nothing
【简答题】简述新民主主义的政治纲领。
【简答题】简述新民主主义的政治纲领。
【简答题】简述新民主主义的政治纲领。
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