South Korean star PSY's “Gangnam style” video,________, has set the Guinness World Record for t

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• 先化简，再求值：，其中x=-1。-八年级数学
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• 化简：=（）．-八年级数学
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• ____ to complete the job on time, they set out to work immediately.A．Being determinedB．On having det
• Mr. Black decided to give up his farm and devoted all his time to_______those children living on the
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• 已知a-b=5，ab=-2，则1a-1b=______．-数学
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• The new building _____ at the end of this year _____ to that university.A. be completed; belongs B b
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• ______ cold, he covered his blanket, ______ only his arms ______.A．Felt, left, uncoveredB．Feeling, l
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• （1）；（2）化简：．-八年级数学
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