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【单选题】
加工如齿轮类的零件,精加工时应以( )做基准。A.
外形
B.
内
C.
端面
D.
以上均可
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皮皮学刷刷变学霸
举一反三
【单选题】Throughout history man has had to accept the fact that all living things must die, but people now live longer than they 【C1】______. Yet, all living things still show the【C2】______of aging, which will ...
A.
use to
B.
be used to
C.
used to
D.
had
【简答题】计算机系统由运算器、存储器、______、输入设备、输出设备五大部件组成。
【单选题】受弯构件正截面承载力中, T 形截面划分两类截面的依据是( )
A.
破坏形态不同
B.
计算公式建立的基本原理不同
C.
混凝土受压区的形状不同
D.
受拉区与受压区截面形状不同
【单选题】Throughout history man has had to accept the fact that all living things must die, but people now live longer than they【36】. Yet, all living things still show the【37】of aging, which will ually.【3...
A.
use to
B.
be used to
C.
used to
D.
had
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