2. 外语
  3. According to the passage, scientists have discovered that influenza viruses ______. What is known about the influenza virus?

According to the passage, scientists have discovered that influenza viruses ______. What is known about the influenza virus?

admin2009-05-28  52
问题 According to the passage, scientists have discovered that influenza viruses ______.
What is known about the influenza virus?
选项 A、It was first found in a group of very old birds.
B、All the different strains can be found in wild birds.
C、It existed over 100 million years ago.
D、It can survive in many different places.
答案D
解析
转载请注明原文地址:https://kaotiyun.com/show/UQvK777K
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)