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问题 单项选择题

劳动力供给的工资弹性E。的计算公式为（）。

A．

B．

C．

D．

答案

参考答案：A

解析：

劳动力供给量变动对工资率变动的反应程度被定义为劳动力供给的工资弹性，简称劳动力供给弹性。其计算公式是劳动力供给量变动的百分比与工资率变动的百分比

单项选择题

The more television children watch, the less competent they are in mathematical knowledge. More than a third of children in the United States watch television for more than five hours a day; in South Korea the figure is only 7 percent. But whereas less than 15 percent of children in the United States understand advanced measurement and geometric concepts, 40 percent of South Korean children are competent in these areas. Therefore, if United States children are to do well in mathematics, they must watch less television.
Which one of the following is an assumption upon which the argument depends

A．Children in the United States are less interested in advanced measurement and geometric concepts than are South Korean children.

B．South Korean children are more disciplined about doing schoolwork than are children in the United States.

C．Children who want to do well in advanced measurement and geometry will watch less television.

D．A child’s ability in advanced measurement and geometry increases if he or she watches less than one hour of television a day.

E．(E) The instruction in advanced measurement and geometric concepts available to children in the United States is not substantially worse than that available to, South Korean children.
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单项选择题

网络硬件和材料部分的成本预算不包括（）

A.机房安装

B.邮件系统

C.综合布线

D.资源设备
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