单项选择题

The author states that birds left the tropics because ______.

A. there was not enough food there in the winter
B. there were too many birds
C. there were too many glaciers
D. there was too much daylight
<上一题 目录 下一题>
热门 试题

单项选择题
The life of the phoenix is described ()

A. with the use of facts
B. in a humorous way
C. in an unclear way
D. step-by-step
单项选择题
Most of a phoenix's life was supposedly spent in ()

A. Greece
B. Egypt
C. Heliopolis
D. Arabia
相关试题