In addition,the paper introduces the concept of critical price,puts forward the pricing model of game in open market,and calculated the price that could maintain high profit for.

Moreover,the concept of critical price is primarily put forward here,and the calculating formula or some necessary requirements for critical price are deduced and ascertained.

The paper founds the equations for optimizing critical oil prices of investment and abandonment,and illustrates the computation methods of the option values and the critical oil prices.

Introduction of guidance for clinical evaluation of antibacterial drug in Japan;

Therapeutic characteristics and clinical evaluation element of the photosensitive drugs;

Pharmacological and clinical evaluation for recombinant human thrombopoietin;