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此时亚洲东部盛行(     )

建立模型是一种很好的学习方法。下列模型及其说法正确的是（   ）

一氧气瓶的容积为0.08m³，开始时瓶中氧气的压强为20个大气压．某实验室每天消耗1个大气压的氧气0.36m³．当氧气瓶中的压强降低到2个大气压时，需重新充气．若氧气的温度保持不变，求这瓶氧气重新充气前可供该实验室使用多少天．

    It's a Sunday morning. Mr Su's family are at home. They don't go to work or go to school today. Look, Mr Su is in the study. He is reading a newspaper. Su Hai is in her bedroom. She is cleaning the windows. Where is Su Yang? She is in the bedroom too. She is sweeping the floor. Now their bedroom is very clean. Mrs Su is in the bathroom. She is washing the clothes . Look, what's on the sofa? It's their cat, Mimi. It's sleeping.