问题 单项选择题


Passage One

Where is the sense organs for vemeronasal system in snakes a. At the bottom of the snakes’ mouth. b. On the roof of the snakes’ mouth. c. On the left side of the snakes’ mouth. d. On the right side of the snakes’ mouth.

答案

参考答案:B

解析:[难点] 从单词“vemeronasal”我们可以推出这个器官跟鼻腔有一定关系,因此,它不可能在口的左边、右边或者底部,最有可能的是顶部。考生就算推断不出,文章中也提到了,可以听出。

解答题
单项选择题