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A.They use recognition technology.B.They are powered by solar energy.C.They are connected with smart phones.D.They can help wanted plants grow rapidly.30.What do Ben Chostner's words suggest about the robot?A.It can track various plants.B.It has the learning ability.C.It is environmentally-friendly.D.It is good at self-improving.31.What is mainly talked about in the text?A.Modern See Spray technologyB.The experiment in farming robots.C.Artificial intelligence in agriculture.D.The new trend in artificial intelligence.DA lot of manufactured glass today made from sand and sodium carbonate (can bereused or melted down and recycled into new items,but it doesn't break down in the environment andwill sit in landfills for thousands of years.A team of Chinese scientists aimed to deal with thisenvironmental concern by developing an eco-conscious alternative.In a study published recently in the journal Science Advances,a team at the Chinese Academyof Sciences'Institute of Process Engineering describe how they engineered biodegradable glass madefrom amino acids ()That glass would have a smaller impact on the environment and canbreak down in a few weeks or in several months.In a test,glass beads (made out of amino acids were placed under the skin of mice,andthe breakdown of the beads and the skin healing process were observed for 30 days.A diagram fromthe study shows how the mice's bodies broke down the beads.In that month,the glass implantdegraded beneath the skin,the wound site healed,and fur grew back."Throughout the experimentalperiod,no mice exhibited any pain-related behavior that may have been caused by the glassimplantation,and none of them experienced obvious weight loss,the researchers wrote in theirpaper.Although amino acids do degrade over time in the environment,this biodegradable glass is notas durable as traditional glass,because amino acids can break down quickly in heat.In order toovercome this,the researchers chemically modified (the amino acids using the heating-cooling procedure applied in glass manufacturing.This is when materials for the glass are heated tobecome soft and then rapidly cooled so as to make the glass tougher.