Objective To investigate the expression of androgen receptor, retinoblastoma and cyclinDl for the purpose to evaluate their prognostic function in gastric cancer relationship.

A study of technical development limits for heavy oil reservoir with strong water sensitivity-taking Sha1 interval of Zheng36 block in Wangzhuang Oilfield as example;

Philosophical study on the limit of the periodic system of elements;

Distinction of Limit between Law-breaking Advertisements and False Medicines;

The limits of injection timing for weak gel profile control are studied by physical simulation experiment and numerical simulation technology aiming at the features of the conglomerate reservoir in Keshang formation ofQizhong area in Kelamayi oilfield.

Then the law needs to define the limits of validity of contract clauses and to figure out the corresponding remedies,which is not only the need of modern civil law to maintain the substantial justice,but also the internal need of the consideration of contract itself,and which is also responsive to the rule of"predictable benefit"about deliquent liabi.