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【单选题】
如果取双边冲裁间隙为板厚的 5% ,冲裁低碳钢板A.
可不产生毛刺
B.
模具寿命不高
C.
冲裁力比较小
D.
间隙过大
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举一反三
【简答题】目前大量使用的条形码有 和 两大类。
【简答题】How many kinds of doctors are there in the US?
【单选题】How many kinds of illnesses can be caused by the germs in swimming pool water as mentioned in the passage?
A.
One.
B.
Two.
C.
Three.
D.
Four.
【简答题】How many kinds of fish are there in the world? _________________.
【简答题】How many kinds of materials will the university send the applicant after they receive the application materials? The university will sand the applicant ______ kinds of material.
【单选题】There are so many kinds of cameras in the shop. We can't decide . [ ]
A.
how to buy it
B.
how to buy
C.
which to buy
【单选题】How many kinds of ideas are there about the future?
A.
Two.
B.
Three.
C.
Four.
D.
Five.
【简答题】How many different kinds of sounds are mentioned in Paragraph 3 ?
【简答题】How many kinds of lessons do they have in a week?（ ）
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