2. 外语
  3. The anti-virus agent was not known ______ (直到一名医生偶然发现了它).

The anti-virus agent was not known ______ (直到一名医生偶然发现了它).

admin2020-01-14  30
问题 The anti-virus agent was not known ______ (直到一名医生偶然发现了它).
选项
答案until a doctor discovered/found it by chance/accidentally
解析 本题考点在于以下两点：(1)表示“直到……”用until；(2)中文中的“偶然”用by chance或者accidentally表达。
转载请注明原文地址:https://kaotiyun.com/show/1jp7777K
0

大学英语四级

相关试题推荐
随机试题
最新回复(0)