it is the middle value between the upper limit and the lower limit in one class.
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【简答题】阅读理解。 Jane is a nice girl. She lives in London. She studies (学习) in a middle school. She gets up at six every day. She likes reading English. She's a bright girl. She draws pictures well. After school...
【简答题】阅读理解。 Jane is a nice girl. She lives in London. She studies (学习) in a middle school. She gets up at six every day. She likes learning English. She's a bright girl. She draws pictures well. After schoo...
【简答题】Jane is a nice girl. She lives in London. She studies(学习) in a middle school. She gets up at six every day. She likes reading English. She’s a bright girl. She draws pictures well. After school, she o...