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．The blacks.B．The whites.C．The Chinese.D．The Japanese.
A．The blacks.
B．The whites.
C．The Chinese.
D．The Japanese.
单项选择题
A．Phillips will not be in this office at all this week.B．He will be here on Tuesday only.C．He’’ll be here on Monday, Wednesday and Friday.D．He’’ll be at this office on Tuesday and Thursday.
A．Phillips will not be in this office at all this week.
B．He will be here on Tuesday only.
C．He’’ll be here on Monday, Wednesday and Friday.
D．He’’ll be at this office on Tuesday and Thursday.
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