Kelihua and datangdianxin are examples to judge three modes correction ratio . this essay analyses that why kelihua is knows as st stock company . i predict that datangdianxin will be a deficit company and explain the reason 本文以科利华、大唐电信为案例，分析科利华成为财务危机的原因以及预测出大唐电信2002年将成为亏损公司，并说明其原因。
