,the welfare detention and repatriation changed into detention and imprisonment as a punishment The Bill of Security Administration for the draftmen and beggars in the cities replaces the principle of Detention and Repatriation.

The paper makes a comparative study of system of handling indigent migrants and system of providing social aid for indigent migrants.

Compared with Measures for Handling Indigent Migrants, Measures for Assisting Vagrants and Beggars has great changes in many aspects such as the selection of legislative purpose, the determination of law enforces, the definition of people who need succor, etc.

Through the study of the method of the tie-in of optical fiber and to take in redundance optical fiber, a method to deal with the redundance optical fiber in tie-in box is summarized, which will overcome the inconveniences in traditional up-winding or extraction processes.

Surveillance on sexually transmitted diseases of persons in a reeducation center in Shenzhen city in 2004;