下列关于分类单位的描述中,正确的是( )
A:分类单位越大,所包含的生物种类越少
B:分类单位越小,生物的共同特征越多
C:同一分类单位中,生物的特征是完全相同的
D:分类单位越大,亲缘关系越近
例:I like spring. ——I liked spring before.
Her hair is short. ——____
— Excuse me, have you seen _______ umbrella here?— Yes. Is it _______ beautiful blue one? I saw it here just now.