A. as fish does B. oil C. by the United States in the 19th century D. shines day and night E. only a very small percentage F. a

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问题 A. as fish does
B. oil
C. by the United States in the 19th century
D. shines day and night
E. only a very small percentage
F. a limited amount of the gold found there
.___________has become Alaska’s single important resource.

选项

答案B

解析 本句应该定位到第6段,主要是关于自然资源的介绍,段落中很清楚地提到了近些年来,阿拉斯加最重要的资源是石油。
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