单词拼写 每个空格只准填一个单词。(共5小题,每小题1分,满分5分) 小题1:Bob won’t study in this school any m______. He will move to America with his parents. 小题2:Little Tom often helps the old clean the rooms in his f______ time. 小题3:May I ______(play) the piano? 小题4:I am looking for my new book e______, but I can’t find it. 小题5:What ______ (尺码) are your shoes? |
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你能帮帮他们吗
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计算:a²√8a+3a√50a³-a/2√18a³ (a≧0)
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