-Peter has changed a lot, hasn't he?
-Yes. He used to __________ the guitar, but now he is more __________ in playing soccer.
A:plays; interested
B:play, interested
C:play; interesting
D:playing; interest
氨催化氧化是硝酸工业的基础,在某催化剂作用下只发生主反应①和副反应②,有关物质产率与温度的关系如图.
①4NH3(g)+5O2(g)⇌4NO(g)+6H2O(g)△H=﹣905kJ/mol
②4NH3(g)+3O2(g)⇌2N2(g)+6H2O(g)△H=﹣1268kJ/mol
下列说法中不正确的是( )
根据汉语完成句子
与我国青藏地区与西北地区的分界线基本一致的是( )