题目

阅读材料，从所给的六个选项（A, B, C, D, E, F）中，选出符合各个小题要求的最佳选项。请看下面5个人的要求：Anna is a busy college teacher only free on Sunday. She is very worried about her parents' health. She hopes to find some better ways to improve her parents'health condition, but not medicine.Mary is a student in Oxford University and she has a wide interest. She is especially interested in visiting some places and dressing up herself.Rain has won the first prize in the National Youth Music Contest. So his classmates are asking him to find a 地球表面热量带中，四季变化比较明显的是 [     ]A．温带B．寒带C．热带D．所有热量带