与稀盐酸合用,治疗幼畜因消化液分泌不足而引起的消化不良的药物是()。 ["胃蛋白酶","碳酸氢钠","氯化钠","铁制剂"]
贯通道就是用于乘客在车厢内行走之用。
River currents tend to(). ["pick up speed where the channel widens","run slower in the center of the channel","hug the inside of a bend","cause the greatest depth of water to be along the outside of a bend"]
石灰乳制备主要有哪些设备?
The ignition quality of a diesel fuel is indicated by the () ["cetane number","volatility point","viscosity index","octane number"]
某电信公司在进行小灵通网络建设的早期,宣传小灵通是“时尚的选择”,是“身份的象征”,在小灵通业务促销时,对小灵通进行外表包装,每个小灵通提供一份精美的说明书,并配有专门的小灵通手提袋,建立了完善的售后服务网络,承诺半年内包换,一年内包修,同时宣传通过小灵通可以上网。该公司采用了现代营销中的什么概念?简述其内容。