Objective To compare the effect of 3 detection methods of the third stage larvae of Angiostrongylus cantonensis in Ampullaria gigas,and analyze the degree of the epidemic foci using the best method and explore this method for epidemiology.

The first strip mini - mill in China;

The clinical study of freestyle positions on delivery during the first labor strage;

Clinical obstration on promoting the first stage of the multigravidae by using of 654-2;

Relationship between abnormal fetal heart rate tracing patterns during the second steage of labor and perinatal outcome;

Observation of course of placental separation by continuous dynamic ultrasonography during third stage of labor;

Discussion about the third problem of environmental engineering geology;

Based on systematic working up of former geotechnical engineering investigation reports,by the use of physical mechanic indices and loading test results of the No.

My viewpoint on set calculation of step Ⅲ operating impedance of the type 11 microprocessor_based phase to phase distance protection;