题目

 Mike often attempts to escape whenever he breaks traffic regulations.  A. having been fined                      B. to have been fined C. to be fined                                D. being fined 答案：D已知豌豆某两对基因按照自由组合定律遗传，其子代基因型及比值如右图，则双亲的基因型是A．AABB × AABbB．AaBb × AaBbC．AaBb × AABbD．AaBB × AABb