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The passage suggests that a lack of modern sanitation would make which of the fo
The passage suggests that a lack of modern sanitation would make which of the fo
游客
2024-01-13
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管理
问题
The passage suggests that a lack of modern sanitation would make which of the following most likely to occur? [br] It can be inferred from the passage that Lyme disease has become prevalent in parts of the United States because of which of the following?
选项
A、The inadvertent introduction of Lyme disease bacteria to the United States
B、The inability of modern sanitation methods to eradicate Lyme disease bacteria
C、A genetic mutation in Lyme disease bacteria that makes them more virulent
D、The spread of Lyme disease bacteria from infected humans to noninfected humans
E、An increase in the number of humans who encounter deer ticks
答案
E
解析
The best answer is E. The passage mentions two reasons for the rise in the prevalence of Lyme disease: an increase in the number of deer and thus of the number of the deer ticks that carry the bacteria, and the proliferation of human activity in the deer’s habitat, suggesting that contact between humans and deer ticks has increased significantly since the late nineteenth century. No mention is made of the transmission of Lyme disease bacteria to the United States, or of any genetic mutations in the bacteria, so A and C can be eliminated. Choice B is incorrect because the passage does not suggest that any attempt was made to eradicate Lyme disease through better sanitation. Choice D is incorrect because the passage describes only deer ticks as a source of Lyme disease bacterium, not infected humans.
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