As many as 100 species of fish, some______to these waters, may have been affected by the pollution.

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问题 As many as 100 species of fish, some______to these waters, may have been affected by the pollution.

选项 A、unusual
B、particular
C、typical
D、unique

答案D

解析 句意为:多达100种鱼,有些是这片水域所独有的,可能已经受到了污染的影响。各选项的意思为:unusual“不寻常的”;particular“特别的,挑剔的”;typical“典型的”;unique“特有的,独有的”。根据句意可知,答案是D。
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