Abstract: In order to find out the scope and extent of the impact on ship navigation safety at night by light pollution at sea, a questionnaire was carried out and the reliability and validity of the ...
ABSTRACT: Objective: The aim of this study was to improve the Chinese Daoyin technique (physical and breathing exercises), which is an ancient rehabilitation method, to elevate its effect and to ...
Abstract: The novel coronavirus pneumonia has a great impact on the normal school teaching. The higher vocational colleges fully respond to the requirement of the Ministry of education, and carry out ...
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