题目内容

Einsteinis famous for E=mc²; Edison is famous for the invention of the light bulb.

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All over thecountry, people sell products over the Internet, these people are making impressive profits.

It is reported that graduate students’ salaries are not as high as expected, some cannot earn as much as university students.

Mother’s Day is always on a Sunday Thanksgiving is always on a Thursday.

所谓正交，是指将基因型未知的显性个体与隐性纯合体交配，以鉴定显性个体基因型的方法。（）

A. 对
B. 错