搜题
王老师:19139051760(拨打)
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第1题

若函数f(x)在[a,b]内恒有f.(x)<0，则f(x)在[a,b]上的最小值为f(b).()判断题 (5 分)5分 A.对 B.错
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第2题

Importing and exporting is transferring goods from one country to another while attention _to the laws and requirements
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第3题

Importing and exporting is transferring goods from one country to another while paying attention to the laws and require
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第4题

―By the way, what do you want me to do there? ―___________________ A. Take it easy.I.ll be there on time. B. Thank yo
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