2. 外语
  3. It is believed that fear______. Dr. Shumyatsky discovered that the knock-out mice______.

It is believed that fear______. Dr. Shumyatsky discovered that the knock-out mice______.

admin2009-06-24  20
问题 It is believed that fear______.
Dr. Shumyatsky discovered that the knock-out mice______.
选项 A、had damaged hearing.
B、had low pain sensitivity.
C、were not capable of learning fear.
D、showed instinctive fear when seeing cats.
答案C
解析
转载请注明原文地址:https://kaotiyun.com/show/W1Hd777K
本试题收录于： 公共英语五级笔试题库公共英语（PETS）分类
0

公共英语五级笔试

公共英语（PETS）

相关试题推荐
随机试题
最新回复(0)