单项选择题

How are tornadoes distinguished from whirlwinds

A．Whirlwinds rotate in a different direction than tornadoes do.
B．Tornadoes travel over land and whirlwinds over water.
C．Tornadoes are larger than whirlwinds.
D．Only tornadoes are funnel-shape

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热门试题

单项选择题

Why do tornadoes appear to be dark

A．They occur only at night.
B．They are funnel-shaped.
C．They pick up debris from the ground.
D．They are water-laden.

单项选择题

According to the passage, who has the greatest degree of control in an administered system

A．Individual.
B．Small businesses.
C．Major corporations.
D．The government,