单项选择题

A．By increasing the use of natural fertilizer.B．By limi……

How does rotational grazing reduce the need for pesticide treatments

A．By increasing the use of natural fertilizer.
B．By limiting the need for chemical fertilizers.
C．By reducing the growth of weeds.

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单项选择题Which news agency votes for the top ten news stories

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B．The Associated Press
C．United Press International.

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A．Someone broke into her car.
B．She had to pay too much for parking.
C．She was given a ticket .

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B．By asking the sales representative.
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A．In an engine room
B．in a car.
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