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问题 单项选择题

典型之类稳压电源电路由变压器、辅助电源、主电源、调整元件、放大器、（）及取样电路组成。

A、额定电流

B、额定电压

C、基准电流

D、基准电压

答案

参考答案：D

单项选择题

An analyst gathered the following information about Weston Chemical's stock:
Estimated sales per share = $12.19
Earnings before interest, taxes, depreciation, and amortization (EBITDA) = 73%
Interest expense per share = $2.07
Depreciation expense per share = $6.21
The tax rate =35%
Weston's estimated Earnings per Share (EPS) is closest to

A. $0.40.


B. $2.54.


C. $3.11.
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多项选择题

在相同网络规模下，N频点组网的（）比多载波组网的要少。

A.频点数

B.扰码数

C.邻小区数

D.小区数
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