【題目】There are many special wildlife species in Australia because it has been __________ from other continents for so long.

A. prevented B. protected

C. provided D. separated

【答案】D

【解析】句意：之所以在澳大利亞有許多獨特的野生物種，是因為它已經(jīng)和其他大洲分開了很久 To prevent預(yù)防，防止；protect保護，保衛(wèi)；provide供給，提供；separate使分離；區(qū)分。

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