Three stages are found in the history of the studies of "Southern Hunan dialect",namely,period of fragmentary record in the ancient text(prior to 1930s),period of single point survey record of modern investigation approach(1935-2000),the beginning of which was marked by The Survey Report of Hunan Dialect,period of comprehensively profound discussion(2000-present),the.

Based on a blind research of in-vitro diagnostic devices in use,this paper analyses the error rates of clinical laboratory items in hospitals of different levels,and gives some advies and suggestions for clinical laboratory administration.

This paper introduced the capability and parameters of "CR-02" AUV, mainly described some experiment results of "CR-02" AUV used in point-survey, provided experiment data and theoretic results for sea test of "CR-02" AUV in the future.

The Landscape Research of Da’an Temple;