"Internet +" is a scientifically controlled technology that utilizes the acceleration, quality, and efficiency of technology. As advanced technology and tool, the Internet is actively used for construction and development, and used for attacks and damage. It is negative. We must actively and effectively use the Internet as an advanced tool to promote economic and social development, and we must establish good order and adopt security protection measures to prevent passive and harm caused by destructive use. Regarding this text, what is the following understanding? ['The Internet is conducive to promoting economic and social development, and its advantages outweigh its disadvantages.', 'The Internet is a double-edged sword. "Internet +" is a dialectical advantage and avoidance of the Internet.', 'The emergence of "Internet +" is to eliminate the negative effects of the Internet.', 'The Internet has caused many young people to indulge in it, delaying their studies, and doing more harm than good.']