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给所用词的正确形式填空 there___【be】some bread on the table Ithought Amy
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英语智力题What is the best thing to keep in hot weather?
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He thinks playing computer games ________. A.frustrated B.fr
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定义在【-2,2】上的奇函数fx,当x∈(0,2】时,fx=-1/2x+1,则不等式f(x)-f(-x)≥2x的解集为
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