单项选择题

A. To attract more sea animals to the testing site.
B. To drive dangerous sea animals away from the testing site.
C. To help trace the sea animals being tested.
D. To determine how sea animals communicate with each other.
<上一题 目录 下一题>
热门 试题

单项选择题
A. They were frightened and distressed. B. They swam away when the speaker was turned on. C. They swam closer to examine the speaker when it was turned off. D. They didn’t seem to be frightened and kept swimming near the speaker.
A. They were frightened and distressed.
B. They swam away when the speaker was turned on.
C. They swam closer to "examine" the speaker when it was turned off.
D. They didn’t seem to be frightened and kept swimming near the speaker.
填空题
dramatic
相关试题