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陕西省2023-2024学年度九年级第一学期阶段性学习效果评估（二）英语试卷答案

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31.What is the suitable title for the text?A.Medha Registered for the App ChallengeB.Medha Designed“Safe Travel”SuccessfullyC.The App Challenge Directs Students to Choose CareersD.An App Guides Walkers Home

18.What can the students bring with them during the course?A. Notebook computers. B. BBusiness videos C. Mobile phones.

A method to transform a commonlythrown-away plastic to a resin(树脂) usedin 3D printing could allow for making betteruse of plastic waste. A tea of WashingtonState University researchers developed asimple and efficient way to transform poly-lactic acid(PLA) (聚乳酸) , a bio-basedplastic used in products such as filamentingplastic silverware and food packaging to ahigh-quality resin.“We found a way to immediately turnthis into something that’s stronger and better, and we hope that will provide people

陕西省2023-2024学年度九年级第一学期阶段性学习效果评估（二）英语