正确答案: C

腹主动脉

题目：睾丸动脉起自 （ ）

解析：C

查看原题

举一反三的答案和解析：

[单选题]下列属于同一个种群的是( )

某一实验地中的小麦

[单选题]If you don't answer your friends' letters, it seems to say that ______.

your friend is not worthy of your letter

解析：

40．答案为C。根据题干找到第二段最后一句，To a letter unanswered is like saying，“I don't think you are worth the time and effort it takes to write a letter．”作出该项选择。

[单选题]朱自清早期参加的文学社团是( )

文学研究会

解析：【答案】B