调整滚剪机滚刀间隙时,垂直间隙为()δ,水平方向间隙为1/4δ(δ为板厚)。A.1/

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问题:

调整滚剪机滚刀间隙时,垂直间隙为()δ,水平方向间隙为1/4δ(δ为板厚)。

A.1/5

B.1/4

C.1/3

D.1/2

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Knowing how to do in case of fire is important. If a fire break out, what would you do? First, you should warn everyone in the building about the danger. Don’t panic or start shouting. Be calmly and act quickly. Second, you and all the others should be get out of the building. Don’t stop take anything with you. Once you are out of the building, stay out. Do not go back for some reason. Finally, when you are out of the building, calling the fire police. Don’t try to put off the fire yourself. That can be dangerous if you do.

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正常尿()

A.>1g/d

B.<80mg/d

C.100mg/d

D.>150mg/d

E.>3.5g/d

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This training program can give you a lift at work, ____ increase your income by 40%.

A.as well as

B.so long as

C.so much as

D.as soon as

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气管插管的优点()

A.防止返流和误吸

B.便于呼吸管理,保证呼吸道通畅

C.远离手术部位,便于手术操作

D.改善病人通气

E.增大有效肺泡通气量

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三相电源发出的总有功功率,等于每相电源发出的有功功率的和。

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