搜题请搜索小程序“爱下问搜题”
问题 单项选择题

计算机病毒按照病毒程序的寄生方式和对系统的侵入方式，分为系统引导型病毒、文件外壳型病毒、目录型病毒和( )。

A．宏病毒

B．CIH病毒

C．D2病毒

D．大麻病毒

答案

参考答案：A

问答题

Directions:

You are planning to study in a foreign university. Write a letter of application to ask for some materials. Write to tell them

1) your educational background and

2) what major you want to study.

You should write about 100 words on ANSWER SHEET. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You don’t have to write the address.
查看答案
名词解释

前胃弛缓
查看答案