A：质量守恒定律揭示了化学变化中宏观物质之间的质量关系，与微观过程无关
B：化学实验是人类认识物质、改造和应用物质、推动化学科学发展的主要手段
C：化学的主要特点是在原子、分子水平上认识物质，化学可以识别、改变和创造分子
D：通过化学变化，人们改造物质世界并实现物质与能量的相互转化
they, take, cry, go, sleep
After finishing all the food in the little bowl，Goldilocks wanted to rest．She chose the small chair,but it was in pieces．Then she walked into the bedroom and very soon fell____in the small bed．The Bears returned to____house．Baby Bear pointed at Goldilocks and____，"That's the bad girl．She ate my food and broke my chair!"Hearing this．Goldilocks jumped up and hurried out of the house without____her basket．She decided not____for a walk in the forest again．
