没有地的

"Yuan" is the name of Chinese monetary, RMB does not devaluate so much as western experts predicted, on the contrary, it is stronger than ever.

"元"是中国货币的名称，在东南亚金融危机后，人民币没有像西方预料的那样贬值，相反它比以前更加坚挺。

Factors with prescribed properties such as factors including or excluding some given edge, maximum or minimum factors, factor covering and connected factors; 3. Factorizations of graphs; 4. k-extendable graph and its generalizations. Fractional graph theory is a relatively younger research branch.

例如，因子与图的最小度，韧度，联结数：邻域并等参数之间的关系；2·研究图的有限制条件的因子，例如，有约束条件的因子，图的连通因子，图的最大最小因子；3·图的因子分解；4·k-可扩图及其推广等。