1983年，一道特区管理线从东到西建起，将深圳一分为二，人们称之为“二线”。十多年来，“二线”对维护深圳的社会治安等起到了一定的作用。但现在的深圳已经不是十年前的深圳，“二线”的现状，与深圳社会、经济发展很不相适应。因此，为了深圳增创新优势，更上一层楼，加快 In 1983, a special administrative region of the SAR was established from east to west, splitting Shenzhen into two and calling it a “second-tier.” For more than a decade, the “second line” has played a certain role in safeguarding the social order in Shenzhen. However, the current situation in Shenzhen is not Shenzhen a decade ago. The status quo of “second-tier” development is not compatible with the social and economic development in Shenzhen. Therefore, in order to create new advantages in Shenzhen, a higher level and speed up