Today we are developing a new idea—Money is the measure of all things. More and more, people are being judged by what they own, and not by their good qualities. This is certainly true among many people in China.

    According to a survey that was done in 2013, China is the most materialistic(物欲的) country in the world. Twenty-three percent of Chinese said they measured success by the things they owned (cars, homes, jewelry, designer clothes) compared with just 21 percent in America, 20 percent in Canada, and 16 percent in Britain.

    This love of materialistic has spread into schools where some kids like to show off their Apple Watches, iPhone7 and expensive running shoes. Some poorer students now feel worried by their richer classmates and sad by their poor families. In some cases this has affected their performance in school.

    But having rich parents doesn't automatically(自动地) bring good grades and having poor parents doesn't certainly bring bad grades. It is hard wok that is the key to success, not the cost of your running shoes. And hard work is what develops good characters, not money, that should be the measure of all things.

当DNA分子的一条单链中=0.7时，在整个DNA分子中这种比例是（　　）

 材料一：“我插一句啊,也要教育我们的公民到海外旅游讲文明。矿泉水瓶子不要乱扔,不要去破坏人家的珊瑚礁。”2014年9月15日晚,正在马尔代夫进行国事访问的中国******,在下榻饭店会见中国驻马使馆工作人员、中资机构和华侨华人代表。当中国驻马尔代夫大使王福康说到中马旅游合作时,***一番幽默的插话,引起全场一片笑声和掌声。
材料二：为规范人们在旅游中的行为，中央文明办、国家旅游局联合颁布《中国公民出境旅游文明行为指南》、《中国公民国内旅游文明行为公约》。这对于提高公民文明素质，塑造中国公民良好的国际形象具有重要意义。
结合所学知识回答下列问题：