题目内容

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

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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

孟德尔以豌豆为材料进行了长达八年的研究,终于总结出了遗传学的连锁和交换定律。( )

A. 对
B. 错

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