一些地区为鼓励志愿者活动，把志愿者作为评优加分或保研依据，你怎么看？
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What is the Least Common Multiple of 30 and 40？
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据悉，自1986年起，美国华人经济已跃居全美少数民资之首，遥遥领先与日裔、韩裔等其他后裔。美国华人家庭的年均收收入应经超过美国白人家庭。(leap to)
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