题目

—Oh, Miss Wang, your dress looks nice, is it new?—No, I           it for a year.A. had bought                   B. bought                        C. have had 答案：C解析:略植物生长需要量最多的无机盐是A.钙、铁、硫B.氮、硫、磷C.氮、磷、钾D.钾、磷、铁