搜题请搜索小程序“爱下问搜题”
问题 单项选择题

南京是中国近代史的起点和终点，是近代中国的缩影。下列事件没有发生在该地的是（）

A.中华民国成立

B.同盟会的成立

C.国民党 * * 垮台

D.日本侵略者制造大屠杀惨案

答案

参考答案：B

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．virtual

B．virus

C．worms

D．bacteria
查看答案
单项选择题

粪类圆线虫的感染期为

A．杆状蚴

B．感染性棘头体

C．丝状蚴

D．棘头体

E．虫卵
查看答案