The diversity of tropical plants in the region represents a seemingly __________ source of raw materials, of which only a few ha

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问题 The diversity of tropical plants in the region represents a seemingly __________ source of raw materials, of which only a few have been utilized.

选项 A、exploited
B、controversial
C、inexhaustible
D、remarkable

答案C

解析 词语辨析。exploited 表示“被开发的”、“被利用的”。controversial 表示“有争议的”。inexhaustible 表示“取之不竭的”。remarkable 表示“显著的”、“了不起的”。
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