单项选择题

下列哪一个不属于人工单价的组成（ ）。

A．基本工资
B．工资性补贴
C．保险费
D．职工福利费
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单项选择题
Why does the principal Mrs. Jacobs give Mr. Holland a compass as a gift when she retires from school?
A．  To remind Mr. Holland to go outdoors often.
B．  To indicate Mr. Holland spend too much time staying indoors.
C．  To praise his job as a good compass for his students.
D．  A useful gadget (小玩意) to help Mr. Holland find directions when Mr. Holland does outdoor activities.
判断题
在一点透视中,俯视圆柱体产品时,水平线(长轴)不变,竖直线(短轴)发生变化,短轴无限接近长轴,但不会等于长轴。 正确 错误
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