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问题 单项选择题

净资产利润率指标计算中用到的利润是指( )。

A．息税前利润

B．税后利润

C．税前利润

D．利润总额

答案

参考答案：B

解析： 净资产利润率=净利润/所有者权益平均额，该指标中用到的利润是税后利润。

问答题

一盏白炽灯上标有“220V 100W“字样．

（1）求这盏白炽灯正常工作时的电流．

（2）求白炽灯正常工作时的电阻．
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单项选择题

A (71) is a data type whose major attributes are determined by the rules governing the insertion and deletion of its elements. The only element that can be deleted or removed is the one that was inserted most (72) . Such a structure is said to have a last-in/first-out (LIFO) behavior, or protocol.

A．stack

B．queues

C．pointer

D．record
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