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问题 单项选择题

投资项目评价用的建设期是( )所需的时间。

A．从项目有投资意向起到项目建成投产止
B．从项目决策通过起到项目建成投产止
C．从项目资金正式投入起到项目建成投产止
D．从项目破土动工起到项目建成投产止

答案

参考答案：C

单项选择题

采用交-直-交技术的变频器，整流环节通常使用哪些电力电子器件？（）

A.二极管、三极管、MOSFET

B.运算放大器、二极管、GTO

C.电力二极管、晶闸管、IGBT

D.三极管、场效应管、GTR
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单项选择题

An analyst routinely has the opportunity to offer his clients the opportunity to purchase "hot new issues. " He tells his clients that he will distribute each issue equally among those interested, with himself included in the distribution. The clients do not object to this. With respect to Standard Ⅵ (B) , Priority of Transactions, this :（）

A. cannot be a violation because the clients know of the practice and agree.

B. may be a violation because it is impossible to distribute hot new issues equally.

C. may be a violation despite the clients’ approval.
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