In a attempt to explain the cause of malaria, a deadly infectious disease, early European settlers in Hong Kong attributed the malady to poisonous gases supposedly emanating from low-lying swampland. In the 1880s, however, doctors determined that Anopheles mosquitoes were responsible for transmitting the disease to humans after observing that the female of the species can carry a parasitic protozoan that is passed on to unsuspecting humans when a mosquito feasts on a person’s blood.
What function does the statement in boldface fulfill with respect to the argument presented above?
A. It provides support for the explanation of a particular phenomenon. B. It presents evidence that contradicts an established fact. C. It offers confirmation of a contested assumption. D. It identifies the cause of an erroneous conclusion. E. It supposes a new conclusion in place of an earlier conjecture.
这是Manhattan“Structure-based Family”章的一道例题,它给出的答案是A,而我选的是C
不理解这里的哪一部分算是“phenomenon”呢
并且C的错误点,给出的解释是:Nothing was contested here. First some people thought one thing, and latter, new eveidence led some doctors to conclude something else.
但是我觉得前后观点不一致就是contested的呀
刚开始专项逻辑,不太懂,求大N指教~~ |