2. 外语
  3. According to the passage, scientists have discovered that influenza viruses ______. New strains of viruses are transmitted to m

According to the passage, scientists have discovered that influenza viruses ______. New strains of viruses are transmitted to m

admin2009-05-28  52
问题 According to the passage, scientists have discovered that influenza viruses ______.
New strains of viruses are transmitted to man by ______.
选项 A、A type of wild pig
B、diseased lower animals
C、a group of migrating birds
D、a variety of means
答案D
解析
转载请注明原文地址:https://kaotiyun.com/show/GQvK777K
本试题收录于： 大学英语三级A级题库大学英语三级分类
0

大学英语三级A级

大学英语三级

相关试题推荐
随机试题
最新回复(0)