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问题 单项选择题

趸售电价的折扣率是( )。

A．10%～15%

B．10%～25%

C．20%～25%

D．20%～30%

答案

参考答案：C

解析： 趸售电价按照省及省以上电网对用户的销售电价进行一定折扣后确定，目前的折扣率一般为20%～25%，个别地区为30%左右。

单项选择题

在Word编辑状态下，有些英文单词或汉字下面会自动加上波浪形细下画线。以下关于波浪形细下画线的描述中，错误的是 (48) 。

A．提醒用户此处可能有拼写或语法错误
B．红色表示可能是语法问题，绿色表示可能是拼写问题
C．在[阅读版式]视图中，将不显示Word文档中原来的波浪形细下画线标识
D．不属于文档内容，打印文档时不会被打印出来
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单项选择题

For each blank, choose the best answer from the four choices and write down on the answer sheet.

(21) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.

(22) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.

(23) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.

(24) is the popular LAN developed under the direction of the IEEE802.5.

(25) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

（22）是（）

A.ISO

B.ANSI

C.CCYIT

D.IEEE
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