单项选择题

A．To estimate the extreme weather.
B．To develop the satellite technology.
C．To improve agricultural output.
D．To learn how to change information to maps more efficiently.
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单项选择题
A．He was returning home from a party.B．He just got off work when he saw the UFO.C．He was driving home from a restaurant.D．He was coming home from a police station.
A．He was returning home from a party.
B．He just got off work when he saw the UFO.
C．He was driving home from a restaurant.
D．He was coming home from a police station.
单项选择题
A．The man should try to be more understanding.B．The man’s wife should be more understanding.C．The man’s negative attitude may be derived from his childhood.D．The pessimism of man’s wife may be the result of her past experiences,
A．The man should try to be more understanding.
B．The man’s wife should be more understanding.
C．The man’s negative attitude may be derived from his childhood.
D．The pessimism of man’s wife may be the result of her past experiences,
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