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问题 单项选择题

透平机在通氯开车时，发现主机电流波动厉害，各级出口压力偏高且大幅度波动，中冷器声音异常。经分析是（）。

A、中冷器和机内存水

B、进口阀门芯子掉

C、出口止逆阀失灵

答案

参考答案：A

单项选择题

治疗甲状腺功能亢进症心肝阴虚证，应首选

A．他巴唑加天王补心丹
B．M碘加天王补心丹
C．他巴唑加六味地黄丸
D．他巴唑加消瘰丸
E．碘液加天王补心丹
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单项选择题

Melissa and Love Letter made use of the trust that exists between friends or colleagues. Imagine receiving an (66) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (67) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’ s address book ,previous emails, web pages (68) .
As administrators seek to block dangerous email attachments through the recognition of well- known (69) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to . bat and . cnd plus a whole list of other extensions and will still run and successfully infect target users. Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (70) access to your network.

A．memory

B．caehes

C．ports

D．registers
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