单项选择题

According to the passage, which of the following behaviors is frequently characteristic of funnel clouds

A．Descending from different cloud bases.
B．Occurring in isolated areas.
C．Lasting a long time.
D．Occurring in groups.
<上一题 目录 下一题>
热门 试题

单项选择题
According to the passage, some tornadoes take people unaware because they
A．produce a sound similar to thunder.
B．cannot be seen until it is too late.
C．look so much like other clouds.
D．carry so many large pieces of debris.
单项选择题
How are tornadoes distinguished from whirlwinds
A．Whirlwinds rotate in a different direction than tornadoes do.
B．Tonadoes travel over land and whirlwinds over water.
C．Tonadoes are larger than whirlwinds.
D．Only tornadoes are funnel - shaped.
相关试题