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A rat or pigeon might not be the obvious choice to tend to someone who is si
A rat or pigeon might not be the obvious choice to tend to someone who is si
游客
2024-01-28
19
管理
问题
A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some【C1】______ skills that could help the treatment of human diseases.
Pigeons are often seen as dirty birds and an urban【C2】______ , but they are just the latest in a long line of animals that have been found to have abilities to help humans. Despite having a brain no bigger than the【C3】______ of your index finger, pigeons have a very impressive【C4】______ memory. Recently it was shown that they could be trained to be as accurate as humans at detecting breast cancer in images.
Rats are often【C5】______ with spreading disease rather than【C6】______ it, but this long-tailed animal is highly【C7】______ . Inside a rat’s nose are up to 1,000 different types of olfactory receptors (嗅觉感受器), whereas humans only have 100 to 200 types. This gives rats the ability to detect【C8】______ smells. As a result, some rats are being put to work to detect TB (肺结核). When the rats detect the smell, they stop and rub their legs to【C9】______ a sample is infected.
Traditionally, a hundred samples would take lab technicians more than two days to【C10】______ , but for a rat it takes less than 20 minutes. This rat detection method doesn’t rely on specialist equipment. It is also more accurate—the rats are able to find more TB infections and, therefore, save more lives.
A) associated I) slight
B) examine J) specify
C) indicate K) superior
D) nuisance L) suspicious
E) peak M) tip
F) preventing N) treated
G) prohibiting O) visual H) sensitive [br] 【C2】
选项
答案
D
解析
名词辨析题。空格前是形容词urban,故应填入名词。该句中and前面的含义是“鸽子经常被视为很脏的鸟类”,根据并列连词and可以推断urban后的名词也应该为贬义类词汇。D)nuisance意为“讨厌的人或事”,符合句意,故为答案。备选名词中E)peak“顶点”和M)tip“尖端,末梢”不能用来描述动物,且无贬义的含义,故排除。
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