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问题 多项选择题

如果基站上报CUI链路告警，以下哪些原因是正确的？（）

A、对应的TRX单板不在位；

B、对应的TRX单板版本不正确；

C、FPU单板或TRX模块故障；

D、背板与单板接触不好或背板配线与背板插座接触不好；

答案

参考答案：A, B, C, D

单项选择题

半径为a、轴线间距离为d的架空二线输电线，若ad，则二线间单位长度的电容为（）。

A．A

B．B

C．C

D．D
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单项选择题

A Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (71) , and that it has a mechanism for (72) graphical files. Display text, display graphics, and (73) hyperlinks-there’s 99 percent of the (74) value. That’s not to say that the manufacturers didn’t go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client-side Java applets were supposed to become the preferred (75) for application development Remember frames and all their nasty side effects

（75）处填（）。

A．plane

B．plant

C．plate

D．platform
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