题目内容

机械中的制造单元体和运动单元体分别是。（山西省2015年专升本选拔考试）

A. 构件、机构
B. 零件、构件
C. 部件、零件
D. 构件、零件

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机械零件丧失预定功能或降低到许用值以下的现象，称为机械零件。

Sketching traditionally refers to a preliminary rough type ofdrawingthat an artist might make in preparation for either apaintingor a more formal drawing.

A. 粗糙的
B. 大致的
C. 粗野的
D. 猛烈的

Formally however it is a useful way for an artist to capture a fleeting impression of a scene or person before it changes.

A. 简短的
B. 稍纵即逝的
C. 舰队
D. 逃离

For this purpose, it is typically executed rapidly and with little concern for accuracy.

A. 履行
B. 表演
C. 枪决
D. 完成