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最佳答案:1.They went to the supermarket.2. They wanted to buy some fruit.3.No,they didn't
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最佳答案:1.He is seven years old.2.Yes,it is.3.Three tickets4.No,he doesn't.5.Yes,she is.
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最佳答案:1.goes,restaurant2.chicken,French3.in,Lag4.No,he doesn't.5.Yes,it is
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最佳答案:(1)次声波为什么传播距离远?次声波为什么不容易被吸收?次声波的传播需要介质吗?次声波有哪些应用? (答案不唯一,任选两个)(2)强次声波会使人的平衡器官受到破
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最佳答案:1.She lives in China now.2.She has breakfast at home.3.She has breakfast at scho
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最佳答案:1.No,they didn't.2.They are studying at the English Language Center.3.He thinks
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最佳答案:解题思路:(1)列车设计成子弹头型是为了减小空气阻力作用.(2)在列车在加速行驶过程中,杯子有向后的运动趋势,所以摩擦力方向向前;列车匀速行驶时,在水平方向受到
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最佳答案:小题1:Yes, it is.小题1: It was started in the middle of the 1970s. / In the middle o
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最佳答案:(1)NaClO将FeCl 2氧化成FeCl 3,同时生成NaCl和水,H 2O 2将FeCl 2氧化成FeCl 3,并生成了水,所以本题答案为:NaClO+2
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最佳答案:(1)生命是地球上最珍贵的财富,世界因生命的存在变得生动和精彩。人应该关爱与呵护周围的生命。随意践踏地球上的生命,就是破坏人类赖以生存的生态环境,就是伤害人类自