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.