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问题 单项选择题

I could speak ______ Japanese ______ Chinese, so I had to talk with him in English.

A. not only; but also


B. both; and
C. neither; nor


D. either; or

答案

参考答案：C

解析： 由后半句“所以我不得不用英语和他交谈”可知否定了前面两者，故用“neither…nor…”意为“既不……也不……”。

单项选择题

Melissa and LoveLetter made use of the trust that exists between friends or colleagues.Imagine receiving an （71） from a friend who asks you to open it. This is what happens with Melissa and several other similar email （72） . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages （73） . As administrators seek to block dangerous email attachments through the recognition of well-known （74） , virus writers use other extensions to circumvent such protection.Executable (.exe) files are renamed to .bat and .cmd 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 （75） access to your network.

（72）处填（）。

A．virtual

B．virus

C．worms

D．bacteria
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单项选择题

2000年1月5日至6日，中央农村工作会议在北京举行。会议提出，为适应农业和农村经济发展新阶段的要求，必须大力推进农业和农村经济的（），全面提高农业和农村经济的素质和效益，增加农民收入，这是我国农业和农村经济发展新阶段的中心任务。

A.深化

B.服务社会化

C.结构战略调整
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