单项选择题

A．Two.B．Three.C．Four.D．Five.How many arguments in this ……

How many arguments in this passage lead to the belief of the existence of life on Mars

A．Two.
B．Three.
C．Four.
D．Five.

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单项选择题Which of the following cities is closest m Miami in weather conditions（）

A．Boston
B．Atlanta
C．Washington
D．Houston

单项选择题Among the following four cities, the difference between the afternoon high and the evening low is smallest in （）

A．Kansas City
B．Miami
C．Atlanta
D．Seattle

单项选择题The difference between the afternoon high and the evening low is greatest in （）

A．Seattle
B．Los Angeles
C．Las Vegas
D．Phoenix

单项选择题According to the forecast, （）

A．Kansas City will be warmer than Toronto
B．temperatures will be the lowest in Seattle and Minneapolis
C．the weather will be fine in most of the listed cities
D．more than half of the listed cities ore cloudy or rain likely

单项选择题How is the 1996 discovery related to the possible existence of organisms on Mars

A．The meteorite containing organic compounds is part of Mars.
B．A Martian rock struck Earth about 11,000 years ago.
C．The organisms came back to life after the collision with Earth.
D．The inhabiting organisms appeared more than three billion years ago.