在（）基础上吸收其他的音乐艺术成分创作的《白毛女》，《刘胡兰》等奠定了中国民族新歌剧的基础.
参考答案：秧歌剧
项目建议书的编制单位一般是()。
A.招标代理机构
B.承包方
C.投资方
D.监理单位
All of the following statements are true about the price-to-sales ratio EXCEPT:（）
A. users of the ratio believe that sales information is subject to less manipulation than any other data item.
B. price-to-sales ratio is fairly constant by industry.
C. advocates of the ratio believe that p sales growth is a requirement for a growth company.
