C:当通入Cl22mol时,溶液中已发生的离子反应可表示为:2Fe2++2I━+2Cl2=2Fe3++I2+4Cl━
A:线段BC代表Fe3+ 物质的量的变化情况
B:原混合溶液中n(FeBr2)= 6mol
D:原溶液中n(Fe2+): n(I━): n(Br━)=2:1:3
马尾松能够在石缝里生长,这是因为马尾松 ( )
下列文学常识表述有误的一项是( )
Tai Lihua is a Chinese ____ (A. dancer B. singer). She is very beautiful.____ (A. With B. As )a child,she became deaf and dumb(哑的). She couldn't hear ____ (A. or B. and )say. She was very sad. Later,she had a teacher. The teacher taught ____ (A. she B. her)to dance. She was very hardworking. She danced very ____ (A. well B. good). Now she is very famous.