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．They hate each other.B．They cherish each other.C．The boy care about the girl very much.D．The boy jokes the girl.
A．They hate each other.
B．They cherish each other.
C．The boy care about the girl very much.
D．The boy jokes the girl.
单项选择题
A．1:15.B．2:00.C．1:30.D．3:30.
A．1:15.
B．2:00.
C．1:30.
D．3:30.
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