问题描述：
sat 语法题!
The codfish inhabits the shallow waters of the ocean; they are especially plentiful in {such areas as} the North American continental shelf,where the depth is rarely greater than 200 or 300 feet.
such areas as 但后面只有一个the North American continental shelf，为什么不用such area as？
The codfish inhabits the shallow waters of the ocean; they are especially plentiful in {such areas as} the North American continental shelf,where the depth is rarely greater than 200 or 300 feet.
such areas as 但后面只有一个the North American continental shelf，为什么不用such area as？
问题解答：
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