2. 计算机
  3. The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billio

The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billio

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问题 The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.
选项 A、illness
B、virus
C、weakness
D、attachment
答案B
解析 译文的含义是：电子邮件中的(  )已感染了全球几乎每台计算机，在北美造成了多达10亿美元的损失。A、B、C、D各选项的意思分别是：疾病、病毒、缺陷、附件。只有病毒符合题意，所以本题应该选择B。
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