On a medical school's laboratory exam, students were asked to recognize prepared specimens of parasites, such as lice, fleas and other bugs, by studying their legs under a microscope.
在一所医科学校的实验课考试中，学生们被要求通过显微镜观察已制成的寄生虫标本的腿来辩认是什么虫子，如虱子，跳蚤等等。
On a medical school's laboratory exam, students were asked to recognize prepared specimens of parasites, such as lice, fleas and other bugs, by studying their legs under a microscope.
在一所医科学校的实验课考试中，学生们被要求通过显微镜观察已制成的寄生虫标本的腿来辩认是什么虫子，如虱子，跳蚤等等。
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