A:赞扬了人的自然属性
B:讴歌了人的理性世界
C:描写了人的潜在力量
D:肯定了人的价值
2H2(g)+O2(g)═2H2O(l)△H=﹣571.6kJ/mol
2CO(g)+O2(g)═2CO2(g)△H=﹣566kJ/mol
CH4(g)+2O2(g)═CO2(g)+2H2O(l)△H=﹣890.3kJ/mol
当使用管道煤气的用户改用天然气后,在相同条件下燃烧等体积的天然气,理论上所获得的热值,前者大约是后者的多少倍( )
Look at the bulletin board of Class 3.
Kitty needs a new home
Kitty: 3-month-old cat. White.
Cute and beautiful.
See Elsa.
Mr. Jones from Yangming
The police officer is going to give us a special talk on traffic safety
3:00 pm ~5:00 pm, Jan.17
In the gym
Whose wallet? Found at the front door of the classroom on Jan.5
See Ms Chang
I'm selling A NEW NOTEBOOK
For music classes.
Just two dollars
Jack
已知:Ⅰ.
Ⅱ.控制反应条件,使物质A中的支链Y不与NaOH溶液发生反应;
Ⅲ.F与浓溴水混合不产生白色沉淀.
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