题目

 (06·浙江C篇)Take Action for a Better World : Volunteers Needed Six months’preparation in Denmark: Africa studies, team work combined with social workwith risk group teenagers. Six months’community work in Malawi in People to People Projects: Child Aid,HIV/AIDSFigure and Teacher Training. Qualifications(条件):18 years, hard—workingand social engagement. Please contactus by email: takeaction@betterworld.com  Part-time Work with Exchange Students YOUTHInternational is a non—profit high school foreign exchange studentorganization. We welcome teenagers from over 80 countries world人体耳垂离生(A)对连生(a)为显性，眼睛棕色(B)对蓝色(b)为显性。一位棕眼离生耳垂的男人与一位蓝眼离生耳垂的女人婚配，生了一个蓝眼耳垂连生的孩子，倘若他们再生育，未来子女为蓝眼离生耳垂、蓝眼连生耳垂的几率是（    ） A.1/4，1/8     B.1/8，1/8          C.3/8，1/8     D.3/8，1/2