Scientists in Brazil have used frog skin to

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问题 Scientists in Brazil have used frog skin to

Scientists in Brazil claim they’ve come up with a new way of treating burns. That is, with frog skin. Researchers say it is cheap and effective. The frog skin has components that diminish the growth of bacteria, making the wound heal faster and reducing the amount of time that the patient has to stay in hospital. Researchers said the method had already been successfully used in some hospitals in Brazil.

选项 A、eliminate bacteria.
B、treat burns.
C、speed up recovery.
D、reduce treatment cost.

答案B

解析事实细节题。新闻的导语开篇提出科学家们用青蛙皮来治疗烧伤，因此，正确答案为B。其余的选项A(eliminate bacteria)、C(speed up recovery)和D(reduce treatment cost)只是frog skin的效用，而不是使用frog skin的主要目的；此外，A、C、D是并列的，一个正确则其他的也正确，一道题不可能有2个以上正确答案，因此可以排除这几个选项。

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专业英语八级

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