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An employee counts cash at a bank in Hai'an, Jiangsu province. [Photo by Xu Jinbo/For China Daily]
An autonomous sense-and-avoid navigation system keeps the drone?from running into other objects on the way to its destination, at an altitude of up to 400 feet.?Researchers at the Massachusetts Institute of Technology showed off a sense-and-avoid system last month, but that one was designed to handle obstacles at a mere 30 mph?– half the speed that’s built into Amazon’s specs.
An injured juvenile koala rests at the emergency response wildlife shelter in Mallacoota, Victoria, Australia January 10, 2020. [Photo/Agencies]
An ice cave stays below freezing despite the arrival of spring in Ningwu county, North China's Shanxi province. The ice cave was formed about 3 million years ago and its temperature stays at -6 Celsius degrees throughout the year. [Photo by Wang Quan / chinadaily.com.cn]
An Yuwei, 21, has bought cream, cheese and some baking parchment at the market. A university junior, she fell in love with baking during a summer vacation and heads to the market almost every week with her mother.
来源：资阳报