答案一定是：
1,chemistry is the study of the material composition,structure,properties,and the change rule of science.
2,the father to the more busy later,every day to see a lot of a lot of guests.
3,flowers red as fire,white as snow.
4,subject examines the judgement of the triangle with similar properties,and the comprehensive strong,is relatively complex,difficult.
5,I why so hasty think is the old man took the watch?I said I don't despise them,but to their bones or trust but.B:yes,I mean person of heart,for the abdomen.
6,chemistry is one of the important basic science,biology,and physics,in subjects such as astronomy geography,the mutual infiltration,obtained a rapid development,but also promote the other disciplines and technology development.