单项选择题

A．It’’s the ultimate cause of winds.
B．It causes vertical movements of air.
C．It reduces differences in air pressure.
D．It’’s used to predict weather patterns.
<上一题 目录 下一题>
热门 试题

单项选择题
A．They don’’t have their own cars to drive to work.B．Many of them are romantic by temperament.C．Most of them enjoy the drinks on the boat.D．They tend to be more friendly to each other.
A．They don’’t have their own cars to drive to work.
B．Many of them are romantic by temperament.
C．Most of them enjoy the drinks on the boat.
D．They tend to be more friendly to each other.
单项选择题
A．It limited their supply of food.B．It killed many baby bald eagles.C．It destroyed many of their nests.D．It made their eggshells too fragile.
A．It limited their supply of food.
B．It killed many baby bald eagles.
C．It destroyed many of their nests.
D．It made their eggshells too fragile.
相关试题