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【单选题】
由于磨床使用了砂轮(或砂带)作为切削工具,因此具有其他机床所没有的特点。下列不属于磨床的特点的是()。
A.
万能性更强,适应性更广
B.
工作台定位精度很高
C.
种类多、范围广
D.
加工精度高,表面质量高
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A.
《论持久战》
B.
《论联合政府》
C.
《中国革命和中国共产党》
D.
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A.
the fewer
B.
fewer
C.
the less
D.
the more
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A.
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C.
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D.
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【多选题】如何在程序中添加扩展库?
A.
import 扩展库名字  as  别名
B.
from 扩展库名字 import  *
C.
from  扩展库名字  import  子模块名字
D.
import  扩展库名字
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A.
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C.
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D.
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