A:CH3CH2CHBrCH2Br
B: CH3CH(CH2Br)2
C:CH3CH BrCHBr CH3
D:(CH3)2CBr CH2Br
I love this picture ______ you beside the music fountain.
实验室用硝酸钾配制50.0g溶质的质量分数为20%的硝酸钾溶液,下列说法正确的是( )