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．Weights and measurements.B．Political systems.C．Employment.D．Money.
A．Weights and measurements.
B．Political systems.
C．Employment.
D．Money.
单项选择题
While both plans were perfectly sensible, only one seemed _________ in China's particular situation.
A．available
B．feasible
C．resolvable
D．presumable
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