Mrs. Black is a _______ music teacher and she can sing _______
A:good; well
B:good; good
C:well; good
D:well; well
科学家发现一些生物的细胞色素C有差异:人与黑猩猩的差异最小,与马的差异则大一些,而与果蝇、向日葵的差异则更大.这表明与人亲缘关系最近的是( )