单项选择题

A dolphin breathes through its __________.

A．mouth
B．ears
C．skin
D．blowhole
<上一题 目录 下一题>
热门 试题

单项选择题
The dolphin's teeth __________.
A．are used to chew food
B．are all the same as the ape's
C．can swallow a whole fish
D．are used to catch food
单项选择题
Engineers are studying the dolphin's skin and shape __________.
A．to learn how fast it can swim
B．to discover the value of the dolphin
C．because dolphins are good swimmers
D．because they like swimming very much
相关试题