C(s)+O2 (g)═CO2 (g)△H=﹣393.5kJ.mol﹣1;
则4Fe(s)+3O2(g)═2Fe2O3(s)的△H是( )
A:﹣1648.7 kJ.mo1﹣1
B:﹣1255.3 kJ.mol﹣1
C:﹣861.7 kJ.mol﹣l
D:+867.1 kJ.mol﹣1
白血病患者移植正常人的造血干细胞后,产生了各种正常的血细胞.这主要体现( )
世界上最长的山脉( )
—______.
Hello, my name's Joe. I'm a pupil. I like cooking. I want to1a cook. I want to 2nice food for people. My father is a pilot. He flies a plane in the sky. He is not afraid of 3 My mother is a teacher. She 4Art. She 5good at painting. She can paint beautiful pictures.