题目: In 2010, I will try to do better in study, because I don't want my parents _____ me. [ ]A. to worry about B. worry about C. to worryD. to worried about 答案: 答案:A
题型:解答题 判断下列关系是否为相关关系:(1)历史上,有人认为人们的着装与经济好坏有关系,着装越鲜艳,经济越景气,你认为着装与经济真的有这种相关关系吗?(2)下面是6位同学的身高与体重的数据表:身高(cm)168173176179181185体重(kg)565960656468 画出散点图,并判断它们是否有相关关系. 查看答案