试题与答案

格栅荧光灯灯具的效率应不低于( )。 A.75% B.65% C.60% D

题型:单项选择题

题目:

格栅荧光灯灯具的效率应不低于( )。

A.75%
B.65%
C.60%
D.55%

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A解析:Since dot-corn companies frequently have negative earnings and cash flows, they are often valued using a multiple of sales.

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