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目前世界上普遍采用的造球设备有圆筒造球机和圆盘造球机。()

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湿返矿最大配比量为30%。()

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DuetothepricingofMPprocessors,acustomerisevaluatingDPprocessors.Theyhavecurrentbudgetconstraintsanddonotwanttodiscardobsoletehardwareafterascalingstep.Itiscalculatedthattwoprocessorswillmeettheirimmediateneeds.Theirprojectedgrowthindicatestheywillneedmorethanfourprocessors.Whichofthefollowingrecommendationswillprovidethebestpathforgrowthatthelowestcost?()

A. BeginwithadualDPx445andscaleinthesamechassis
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赫尔卓格认为使得人们喜爱知识竞赛节目的基本心理需求有()

A. 竞争心理需求
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C. 获得新知的需求
D. 夸张心理需求
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