皮皮学，免费搜题
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搜题
【单选题】
钻孔时,钻头的转速大小( )。A.
可以随便选定
B.
由加工孔径大小决定
C.
由进给速度大小决定
D.
由加工工件数量决定
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举一反三
【单选题】We have _______ Day and _______ Day in China. [ ]
A.
Mothers'; Teacher's
B.
Mother's; Teacher's
C.
Mothers'; Teachers'
D.
Mother's; Teachers'
【单选题】______ Day is on June first and ______ Day is on September tenth. [ ]
A.
Children's, Teacher's
B.
Children's, Teachers'
C.
Childrens', Teacher'
D.
Children', Teachers'
【单选题】 Today is ( ) Day. A . Teacher B . Teacher’s C . Teachers’s D . Teachers’
A.
Teacher
B.
Teacher’s
C.
Teachers’s
D.
Teachers’
【简答题】Teacher’s Day around the world is not celebrated on the same day. In some countries, Teacher’s Day is celebrated on working days. However, in other countries, it is celebrated on holidays. Here we are...
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