题目

—Is that a ruler? —No, ______________. A . it is B . it isn't C . that is D . that isn't 答案：B表明两千多年前我国的音乐文化已过到很高水平的是（　　） Ａ．玉铲　　　　　 B．七孔骨笛　　　C．编钟　　　　　 Ｄ．宴乐铜壶