Through the analysis on fifty shares true and false condiment and adulterate part by a-dopting the method of microscope examination finds out the method of distinguishing true and false condiment,solves the problem that true and false condiment is not easy to be distinguished and provides a feasible way for food checker.

Objective: Researching the AEEG evolution and the AEEG changement law before, in and after epileptic clinic seizure, to find the way that can distinguish epileptic wave true or false in epileptic seizure time and to improve the accuracy of epileptic positiverate.

In the thesis, the author believes that the conception of virtualness has its own connotation and denotation; that true or false is only the property of a proposition; that a conception doesn t have its trueness and falseness; and that we can t confuse a false proposition with the conception of virtualness.

The yellow artificial epidermis of a serpentine jade appeared in the recent gem market is studied in this paper.

Main colour of the crust of jadeite jade includes yellow,white,black,red and so on,which is the secondary colour,whereas other colour called the primary colour often distributes irregularly.

By the surface features of crust,distribution of color and characteristics of fissure skeins, the paper discusses the gambling of raw jadeite and its influence to the valuatiion of raw jadeite.

After a great deal of observation on jadeite jade rough in Pingzhou and Huadu,Guangdong Province,the jadeite jade samples with yellow,white and grayish black crusts are chosen as the major objects for study.