经过坐标原点，且与圆x²+y²﹣4x+3=0相切，切点在第四象限，则直线l的方程为（　　）

    As traditional Chinese art, paper cutting has a long history. The first and earliest paper cutting was found in China 1,500 years ago. But this traditional art is at risk of disappearing now. Luckily, Vivian Woo, a Chinese immigrant in America, is trying to bring this art back to life.

    One Saturday in 2017，Ms. Woo held a paper cutting show at a shopping center near Washington. She got much fun and peace doing it. She hoped more people would enjoy it. Ms. Woo began to study the art of paper cutting as a 14 - year - old girl in her hometown in China. She said all the students at school had to learn paper cutting. But she had a deep love for it. So her teacher spent more time teaching her after class. Later, she won the second prize in a national painting and art competition. Ms. Woo went to America after she finished college in 2008. Soon after that, she took part in an activity to promote Chinese paper cutting. And then she was invited to show the art in many important activities. “It is important to promote this art to Americans or anyone who is interested in it. Maybe it will make this art more popular.” Woo said.

    From the art of paper cutting, people can know about Chinese cultural values, history and stories of people’s life. Ms. Woo uses the art as a tool to show Chinese culture to people who know little about it. Chinese art is not only for Chinese, but also for people ail over the world.

2014年2月7日召开的国务院常务会议,听取关于2013年全国人大代表建议和全国政协委员提案办理工作汇报,决定合并新型农村社会养老保险和城镇居民社会养老保险,建立全国统一的城乡居民基本养老保险制度。阅读材料回答问题。

材料一　当前,我国存在地区发展不均衡、城乡差距仍然较大等难题,社会保障必须向农村倾斜,才能照顾到更多困难群众,并使全体人民公平享有基本养老保险。为此,我国决定在全国范围内建立统一的城乡居民基本养老保险制度。基金筹集采取个人缴、集体助、政府补的方式,中央财政按基础养老金标准,对中西部地区给予全额补助,对东部地区给予50%的补助。

材料二　会议认为,政府的权力来自人民,各项工作和决策必须体现人民意志。国务院各部门办理全国人大代表、全国政协委员提出的相关建议、提案,是接受全国人大及其常委会依法监督、全国政协民主监督的重要形式,是了解民情、汲取民智的重要方式和任务,更是政府法治建设的重要内容。国务院各部门通过办理建议和提案,推动一批政策措施相继出台,加大发展改革中一些重点难点问题的解决力度,促进政府工作的科学化、民主化、法治化,密切了政府与人民群众的关系。