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(2018石家庄长安区一模) Peter ran as fast as possible to catch the last bus, but unluckily he ________ it.
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Some parents argue that it is their job to get their kids _____ in community service.
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We'd better wait more minutes. I think Jeff will come soon,
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1年前
等差数列{AN}中,A1+A3+A5=-12,且A1*A3*A5=80,求数列{AN}的通项公式AN.具体点
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