A：In his schoolbag.
B：On his bookcase.
C：Under his bed..,
下列物质之间不能发生化学反应的是（ ）
- It's one of the things in the world to stay with friends.
- I agree. It always makes us relaxed.
蒋廷黻在《中国近代史大纲》中说：“洪秀全人格上及才能上的缺点很多而且很大，倘若他成功了，也不能为我民族造幸福。总而言之，太平天国的失败，证明我国旧式的民间运动是不能救国救民族的。”蒋廷黻所要阐述的观点是
