It is believed that fear. Dr. Shumyatsky discovered that the knock-out mice.

admin2009-06-24 7

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

公共英语五级笔试

相关试题推荐

随机试题

最新回复(0)