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英语六级

单选题

A． Frequent landslides.
B． Too much vegetation.
C． Water draining from another slope.
D． A wall that stops water from draining.

参考答案：D进入在线模考

According to the professor, what might cause a buildup of water on the slope?
.细节题。教授指出Water buildup call easily result during long periods of heavy rain and sometimes the cause is part of the construction it self such as a stonewall that blocks the water from draining off the slope．即“长期的暴雨很容易导致水积聚，有时候部分原因是像石墙这样的建筑本身会阻止雨水从斜坡排水”。因此，正确答案是D。

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