问题描述：
[W69] The Changbaishan Mountains have a huge variety of scenery,some of the best of _______ can
only be reached on foot.
A.that B.which C.what D.where
请翻译,并分析.
only be reached on foot.
A.that B.which C.what D.where
请翻译,并分析.
问题解答：
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