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[听力原文] US FAMILIES TODAY In the early d......

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单项选择题
The experts' study on the problem of erosion can ______
A．warn people whose homes are in danger
B．provide an effective way to slow it down
C．help to prevent it from worsening
D．lead to its eventual solution
单项选择题
The erosion of the white cliffs in the south of England ______
A．will soon become a problem for people living in central England
B．has now become a threat to the local residents
C．can be stopped if proper measures are taken
D．is quickly changing the map of England
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