题目

下列事例与化学有关的是（ ）①研制新药物 ②使环境变得更美好 ③研制新型半导体材料 ④研制印染工业的新型染料 A . ①② B . ①③ C . ①②④ D . ①②③④ 答案：DChildren like ________ Monkey King.A. dressing up B. to dress upC. dress up as D. dressing up as