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develop→be developed
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单项选择题
A．By using satellite images, maps, etc.B．By studying specific farming methods.C．By studying the variation of human population.D．By analyzing the quality of crops.
A．By using satellite images, maps, etc.
B．By studying specific farming methods.
C．By studying the variation of human population.
D．By analyzing the quality of crops.
单项选择题
A．It does not concern John.B．John does not care about his ear.C．John will help him fix the car.D．He wants John to fix the car.
A．It does not concern John.
B．John does not care about his ear.
C．John will help him fix the car.
D．He wants John to fix the car.
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