题干
“Here is a new coat for you. __________ .” My mother said.
A：Put it on
B：Put on it
C：Take off it
D：Take it off
答案(点此获取答案解析）
A
“Here is a new coat for you. __________ .” My mother said.
A：Put it on
B：Put on it
C：Take off it
D：Take it off
溶液至过量，同时加热，沉淀的物质的量先增多后减少，但最终仍有沉淀未溶解，在此过程中还有刺激性气味气体生成。