如果申购资金不足，则不足部分对应的申购为无效申购。
参考答案：错
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.
