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计算 29-14+37
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答案(点此获取答案解析)

解:29-14+37=52

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邱少云、董存瑞、黄继光都是优秀的少先队员,都是战斗英雄(     )

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工业上进行金属切割或焊接时常使用到氧炔焰(乙炔在氧气中燃烧产生的火焰).

同类题3

阅读理解

Sam

    Sam gets up at six in the morning. After that he does morning exercises, has breakfast and goes to school at seven

    Classes begin at eight. In class all of his classmates listen to the teachers carefully. The teachers often ask them some questions. They put up their hands when they know the answers.

    Sam is good at math. That's his favorite subject. His geography (地理) is poor, and he is working hard at it. He likes English. After class he and his classmates often talk to each other in English.

    Classes are over at four in the afternoon. Then the students have an hour to play sports. On Sundays Sam often goes to the park with his friends. In the evening Sam usually does his homework. Sometimes he goes to see a film with his parents. He goes to sleep at about ten.

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鼻腔能使吸入的空气变得湿润、清洁和温暖,与此功能无关的是:(  )

同类题5

根据乘法算式,填写相应的两个除法算式.

7×4=28

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