单项选择题

A．Soil.
B．Human population.
C．Forest.
D．Water.
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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.
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.
单项选择题
A．Buy something in the Bill supermarket.B．Get money to pay her hill.C．Check to see whether he can pay in cash.D．Get a check for the woman.
A．Buy something in the Bill supermarket.
B．Get money to pay her hill.
C．Check to see whether he can pay in cash.
D．Get a check for the woman.
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