The causes of this population rebound are consequences of other human actions. First, the major predators of deer—wolves, cougar

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问题     The causes of this population rebound are consequences of other human actions. First, the major predators of deer—wolves, cougar, and lynx—have been greatly reduced in numbers. Second, conservation has been insured by limiting times for and types of hunting. But the most profound reason for the restoration of high population numbers has been the fate of the forests. Great tracts of lowland country deforested by logging, fire, or both have become ideal feeding grounds for deer. In addition to finding an increase of suitable browse, like huckleberry and vine maple, Arthur Einarsen, longtime game biologist in the Pacific Northwest, found quality of browse in the open areas to be substantially more nutritive. The protein content of shade-grown vegetation, for example, was much lower than that for plants grown in clearings.
Which of the sentences below best expresses the essential information in the highlighted sentence in paragraph 5? Incorrect choices change the meaning in important ways or leave out essential information.

选项 A、Arthur Einarsen’s longtime familiarity with the Pacific Northwest helped him discover areas where deer had an increase in suitable browse.
B、Arthur Einarsen found that deforested feeding grounds provided deer with more and better food.
C、Biologists like Einarsen believe it is important to find additional open areas with suitable browse for deer to inhabit.
D、According to Einarsen, huckleberry and vine maple are examples of vegetation that may someday improve the nutrition of deer in the open areas of the Pacific Northwest.

答案B

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