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【单选题】
数控机床切削加工时,切削深度受()限制A.
工件的加工精度
B.
切削余量
C.
刀具耐用度
D.
机床刚度
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【单选题】Before the 20th century the horse provided day to day transportation in the United States. Trains were used only for long-distance transportation. Today the car is the most popular【C1】______ of transp...
A.
kinds
B.
mean
C.
means
D.
types
【单选题】— What was the _________________________ the day before yesterday? —It was April 6th.
A.
temperature
B.
day
C.
time
D.
date
【单选题】Before the 20th century the horse provided day-to-day transportation in the United States. Trains were used only for long-distance transportation. Today the car is the most popular【C1】______of transpo...
A.
kinds
B.
sort
C.
means
D.
types
【简答题】A.Helen is similar to her mother. B.Helen will be a good police. C.He likes Helens mother. D.He knows Helen very well.
【单选题】Before the 20th century the horse provided day to day transportation in the United States. Trains were used only for long-distance transportation. Today the car is the most popular【C1】______of transpo...
A.
kinds
B.
means
C.
mean
D.
types
【简答题】Helen will have that dress altered to fit her．
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