【判断题】【消耗次数：1】
敬语正确使用：加强修养、恰当使用、养成习惯
①
正确
②
错误
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相关题目
【单选题】
学前儿童养成良好的用眼习惯，以下说法正确的是（ ）
①
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②
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③
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④
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【单选题】
学前儿童养成良好的用眼习惯，以下说法正确的是（ ）
①
Normal 0 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable
【单选题】
学前儿童养成良好的用眼习惯，以下说法正确的是（ ）
①
Normal 0 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable
【单选题】
使用含氟牙膏防龋，正确的是
①
氟牙膏的防龋功效与含氟浓度的高低无关
②
在饮水含氟量高的地区，7岁以下儿童推荐使用含氟牙膏
③
儿童使用含氟牙膏不会引起氟牙症
④
老年人不宜使用含氟牙膏
⑤
6岁以下的儿童宜使用含氟浓度低的牙膏
随机题目
【单选题】
按库存的作用分类,库存可分为（）
①
原料库存,安全库存,调节库存和在途库存
②
周转库存,成品库存,调节库存和在途库存
③
周转库存,安全库存,半成品库存和在途库存
④
周转库存,安全库存,调节库存和在途库存
【单选题】
为了减少汽车尾气污染大气，拟按反应2NO(g)+2CO(g)→N2(g)+2CO2(g)进行催化转化，该反应。从化学原理考虑，下列措施中有利于提高反应转化率的是（）
①
低温高压
②
高温高压
③
低温低压
④
高温低压
【单选题】
物料需求计划（MRP）系统广泛应用于相关需求物品的_____。其方法是按反工艺的方向，并根据最终产品或主要装配件的计划完工日期，来确定各种零件和材料需要定购的日期和数量。该方法在能够预知最终产品的具体需求量时特别适用。
①
库存控制
②
库存安全
③
订货量
④
成本