♚数学做题,做题,做对了送分,做错了丢人,写纸上,标清题号,

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♚数学做题,做题,做对了送分,做错了丢人,写纸上,标清题号,
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♚数学做题,做题,做对了送分,做错了丢人,写纸上,标清题号,
♚数学做题,做题,做对了送分,做错了丢人,写纸上,标清题号,
 

♚数学做题,做题,做对了送分,做错了丢人,写纸上,标清题号,