填空题 Bicycle sharing has been a hotly debated topic over the past two years. Bicycles are nothingexotic to Chinese people. In the 1960s and 1970s, every family dream to own a bicycle, 1considering it a symbol of household wealth. In the 1980s, bicycles became a daily necessity andmost important means of transport for the Chinese. Since the 1990s, bicycles have lost 2their popularity as cars have gradually dominated China's streets. Even today, cars remain the symbols for fortune in society. Currently, bicycle sharing is fueling a cycling renaissance. 3Public bicycle rental systems have been established in many countries, most by the 4government. Citizens only need to insert coins or swipe a special card to rent a bicycle and then return it to a fixed spot. And China's bicycle-sharing market is nothing like that. Equipped with a 5GPS system, "Mobike" and "ofo" , China's two largest bicycle rental startups, they enable 6people to locate, book, and unlock a bicycle in their neighbourhood via a smartphone. Cyclerscan drop the bicycle somewhere as long as it doesn't disturb traffic. To some extent, 7China's bicycle-sharing industry has provided more convenience to city commuters. 8In 2015, the numbers of shared bicycles in China exceeded every other country. Although 9the future of this business model is still unclear, bicycle-sharing is bound to change people's ways of travel. It embodies China's focus on efficiency, high costs and environmental protection. 10