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- Intrusive viruses are hard to write and very difficult to remove without damaging the host file. 入侵型病毒难以编写，在去除它们时常常会破坏主文件。
- Intrusive viruses invade an existing program and actually insert a portion of themselves into the host program. 入侵型病毒侵入已有的程序，实际上是把病毒程序的一部分插入到主程序中。
- Intrusive viruses are hard to write and very difficult to remove without damaging the host file . 入侵型病毒难以编写，在去除它们时常常会破坏主文件。
- Shell and intrusive viruses most commonly attack executable program flies-those with a.com or.exe extension,although data flies are also at some risk. 外壳型和入侵型病毒通常攻击可执行文件，即带有com或扩展名位exe的文件。当然数据文件也有受攻击的危险。
- Shell and intrusive viruses most commonly attack executable program flies-those with a.com or.exe extension, although data flies are also at some risk. 外壳型和入侵型病毒通常攻击可执行文件，即带有或扩展名的文件。当然数据文件也有受攻击的危险。
- Shell and intrusive viruses most commonly attack executable program flies-those with a. corn or. exe extension,although data flies are also at some risk. 外壳型和入侵型病毒通常攻击可执行文件，即带有.;COM或
- Intrusive viruses Invade an existing program and actually insert a portion of themselves into the host program.Intrusive viruses are hard to write and very difficult to remove without damaging the host file. 入侵型病毒侵入已有的程序，实际上是把病毒程序的一部分插入到主程序中。 入侵型病毒难以编写，在去除它们时常常会破坏主文件。
- Intrusive viruses invade an existing program and actually insert a portion of themselves into the host program. Intrusive viruses are hard to write and very difficult to remove without damaging the host file. 入侵型病毒侵入已有的程序，实际上是把病毒程序的一部分插入到主程序中。入侵型病毒难以编写，在去除它们时常常会破坏主文件。
- intrusive viruses Invade an existing program and actually insert a portion of themselves into the host program 入侵型病毒侵入已有的程序，实际上是把病毒程序的一部分插入到主程序中。
- intrusive viruses are hard to write and very difficult to remove without damaging the host file 入侵型病毒难以编写，在去除它们时常常会破坏主文件。
- Some viruses incubate very rapidly. 有些病毒繁殖得很迅速。
- We should be watchful of computer viruses. 我们应该警惕计算机病毒。
- The study of viruses and viral diseases. 病毒学一种病毒和病毒性疾病的研究
- New strains of viruses appear periodically. 新菌系的细菌周期性地产生。
- The presence of viruses in the bloodstream. 病毒血症血液中出现病毒的症状
- The action of cleaning computer viruses. 清除计算机病毒的动作［过程］。
- intrusive viruses 入侵型病毒
- The most impressive form of intrusive is the dike. 最引人注目的侵入体是岩脉。
- We both felt intrusive and out of place. 我们俩都觉得闯到这里来很不合适。
- Intrusive service is what Americans prefer. 美国人喜欢入侵性服务。
