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单选题
It can be learned from the passage that oil exploitation beneath ANWR’s frozen each _____.
A
involves a lot of technological problems
B
remains a controversial issue
C
is expected to get under way soon
D
will enable the U.S. to be oil independent
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参考解析
解析：
细节题。在开采ANWR的石油问题上，美国石油业和环保主义者各持己见。文中采用一般现在时，并且使用了大量表示可能性的情态动词，表明是否开采ANWR的地下石油还没有定论，故选B。由于“much bargaining over leases”和“environmental permits and regulatory review”并非技术问题，故排除A项。C项缺乏依据。D项对布什的看法过于绝对化，故排除。
细节题。在开采ANWR的石油问题上，美国石油业和环保主义者各持己见。文中采用一般现在时，并且使用了大量表示可能性的情态动词，表明是否开采ANWR的地下石油还没有定论，故选B。由于“much bargaining over leases”和“environmental permits and regulatory review”并非技术问题，故排除A项。C项缺乏依据。D项对布什的看法过于绝对化，故排除。
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