如表给出了在常温常压下一些物质的密度，阅读后请判断下面一些结论，其中不正确的是（ ）
物质
密度（Kg．m﹣3）
纯水
1.0×103
冰
0.9×103
煤油
0.8×103
干松木
0.5×103
酒精
铜
8.9×103
水银
13.6×103
铅
11.3×103
A：同种物质在不同状态下，其密度一般不同
B：固体的密度都比液体的大
C：不同的物质，密度一定不同
D：质量和体积都相等的铜块和铅块，铅块一定是空心的
Classical music is serious music．People usually enjoy it at a c____or in a theatre．Beethoven and Mozart are great c____musicians．
Pop music often comes and goes quickly．It is usually about love and everyday life．Country music，____(摇滚)music and jazz are all pop music．They are very popular with young people．
Folk music is ____(简单的)but special．Guo Lanying，Song Zuying and Tengger
are____(著名的)for their folk songs．
