24. The Niagara Waterfalls, is shaped like a semicircle, are 670meters wide, and fall 56

24. The Niagara Waterfalls, is shaped like a semicircle, are 670meters wide, and fall 56 meters in an awesome white sheet of water.
A. what
B. where
C. the largest of which
D. in which

A. whatB. where(答案→)C. the largest of whichD. in which解析：可联系答.案.网客服索取。

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