题目

Look at the students in the photo. The boy in the green shoes is Martin. 【1】 He is from England. He is fourteen years old. His hair is yellow. 【2】 The boy in a blue shirt is his brother, Tom. He is thirteen. 【3】 The girl in a yellow dress is Lisa. 【4】 She is from America. She is tall and she has long brown hair. 【5】 But her mouth is small.A.He likes yellow very much.B.She is their friend.C.He is an English boy.D.Her eyes are big.E.They look the same.已知一个三角形的三边长构成等比数列，其公比为，则函数=－的值域为（      ） A、（，+∞）        B、[，+∞）  C、（，－1） D、[，－1）