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78+15×5÷25=____

450+15×6×7=____

上一题 下一题 0.0难度 选择题 更新时间:2019-01-10 11:24:10

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81,1080

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根据题意解答

同类题2

已知f(x)=x+1og2x9-x则f(1)+f(2)+f(3)+…+f(8)的值为____ 

同类题3

下列词语中,有错别字的一组是(    )

同类题4

    Bill,a 13-year-old boy, thought he had grown up to be a man. But his parents told him, "You won't be a real man until you begin to think about helping others."
    One moming, his parents gave him some money to buy some milk. Outside a shop he saw a homeless old~man who looked very sick. Bill went to him and asked. "what's wrong with you?"
    The old man answered, "I'm hungry,I haven't had any food for two days".
   “Let's go to the restaurant."
    When they got there, Bill asked the waiter to bring out bread and coffee to the old man. The old man finished the meal quickly. Afier the waiter took away the plate and the cup, the old man said, "Sorry for giving you too much trouble. I'm fine now. I'Il never forget your kindness! You're a very good young man."
    Bill was happy when he heard this. Just when he wanted to pay for the meal, the waiter came.To their surprise, Bill and the old man leamed that their food was free because it was the birthday of the boss, and they were the first customers that day.

同类题5

  The young man was lying on the grass with his horse _____a tree.
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