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吉林省梅河口市第五中学2022-2023第二学期高三三模英语试卷答案

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In fact, Pum era says they still have a long way to go. There are many types of plastics.And eventhese micro-robots are unlikely to succeed in degrading them all.The researchers also have not yetshown how safe this system is for the environment, although Pum era says that's their next goal. The firstreal-world test will be in a wastewater-treatment plant. “Indeed, ” says one researcher, “We'll need a lotof testing to show that they're safe in open waterways, such as at sea.”

23.Where can you go if you want to taste a well-known ice cream?A. Mammoth Lakes, California. B.Aspen, Colorado.C. Banff, Alberta. D. Stowe, Vermont.