A:in which; who
B:when; who
C:on which; by whom
D:where; whom
3H2(g)+Fe2O3(s)=2Fe(s)+3H2O(g)△H2
2Fe(s)+ 32 O2(g)=Fe2O3(s)△H3
2Al(s)+ 32 O2(g)=Al2O3(s)△H4
2Al(s)+Fe2O3(s)=A12O3(s)+2Fe(s)△H5
下列关于上述反应焓变的判断正确的是( )
下列有关甲型H1N1病毒和艾滋病病毒的叙述中,错误的是