题目

划分五带的主要依据是(     ) A．有无太阳的直射和斜射 B．有无明显的季节变化 C．获得太阳光热的多少     D．有无极昼、极夜和极光现象 答案：C．【2016福建泉州中考】We teenagers should _____ the old and offer our seats to them on buses.A. laugh at B. depend on C. care for