zai lai 3 ge:

1.wei shen me jing gai shi yuan de?
2.8 ge wan quan yi yang de xiao qiu,you yi ge jiao qing,ni yong tian ping ji ci ke yi zhao chu lai?
3.zui chang de cheng yu he zui duan de cheng yu you duo shao ge zi?
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1。因为井是圆的?
      因为圆的可以滚?
不清楚,瞎猜得

2。两次
第三个问题没看明白

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di san ge wen ti hen wu liao,hui da qian liang ge jiu hao le

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