GRE考试

【单选题】 Surprisingly to those who view the ocean floor as a uniformly ______ waste, each vent in the floor, where seawater is heated by the earth's inte-rior magma, has been found to be an island-like ______ with its own distinctive fauna.
A．(A) teeming...habitat
B．(B) lifeless...enclave
C．(C) barren...oasis
D．(D) sunken...grotto
E．(E) hazardous...environment

网考网参考答案：C
网考网解析：
Rather than being barren or devoid of life, the vent regions are like oases that support life. Choice A is incorrect. A waste by definition is not teeming but barren. Choice B is incorrect. The vent region would not be described as an enclave (tract enclosed within a foreign territory). Choice D is incorrect. A grotto would not be described as island-like. Choice E is incorrect. Nothing in the sentence justifies the use of the term hazardous. 查看试题解析出处>>