磷在钢液中存在的稳定形式为()与Fe3P。
参考答案:
Fe2P
---- Is it convenient for you if I come to see you at 4:00 this afternoon?
---- I’m afraid not. I _____ a meeting then.
A.will have had
B.am about to have
C.will be having
D.was having
《国民经济和社会发展十二五规划纲要》的主线是
A.转变教育的发展
B.转变经济的发展
C.转变科技的发展
D.转变文化的发展