单项选择题

passage One
Questions 26 to 28 are based on the passage you have just heard.

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．4 weeks.B．6 weeks.C．8 weeks.D．10 weeks.
A．4 weeks.
B．6 weeks.
C．8 weeks.
D．10 weeks.
单项选择题
A．By good sense of water waves made by quarries.B．By good sense of smell and electrical and 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 and magnetic power.
C．By good sense of light.
D．By good sense of blood.
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