A甲×乙
B甲、乙分别与隐性个体杂交
C甲×甲、乙×乙
D甲、乙分别自交后再回交
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Mary is a very()woman. She is successful in her career and she is a good mother and wife, too.
A. able;
B. capable
Whatarenot the causes of an error().
A. overgeneralization
B. undergeneralization
C. simplification
D. deduced errors
我国基本的教学组织形式是()
A. 现场教学
B. 班级授课
C. 分组教学
D. 个别教学