单项选择题

A．By forcing them farming.
B．By affecting the quality of soils.
C．By adding chemicals and pollute the waterways.
D．By affecting the environments they live in.
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单项选择题
A．Study a weather map.B．Visit a weather station.C．Watch a weather report.D．Go to a storm shelter.
A．Study a weather map.
B．Visit a weather station.
C．Watch a weather report.
D．Go to a storm shelter.
单项选择题
A．By good sense of water waves made by quarries.B．By good sense of smell and electrical magnetic power.C．By good sense of light.D．By good sense of blood.
A．By good sense of water waves made by quarries.
B．By good sense of smell and electrical magnetic power.
C．By good sense of light.
D．By good sense of blood.
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