建设成功团队应树立以下哪种意识。()
A.目标意识、团结意识
B.激励意识、团结意识、服务意识
C.服务意识、竞争意识、危机意识
D.竞争意识、和谐意识
参考答案:A, C
已知下列数据:
Fe(s)+1/2O2(g) =FeO(s) △H=-272kJ·mol-1
2Al(s)+3/2O2(g) =Al2O3(s) △H=-1675kJ·mol-1
则2Al(s) +3FeO(s) =Al2O3(s) +3Fe(s)的△H是 [ ]
A.+859 kJ·mol-1
B.-859 kJ·mol-1
C.-1403 kJ·mol-1
D.-2491 kJ·mol-1
工业热电阻常用有哪几种?