【单选题】________ is one of the fastest growing segments of online marketing. It targets marketing messages to users based on their location.
A.
desktop/laptop display advertising
B.
location-based (local) mobile marketing
D.
social marketing on Facebook
【判断题】按照操作性条件反射理论,负强化就是惩罚。
【判断题】《证券投资基金销售管理办法》中所称证券投资基金的销售,是指基金管理人或基金代销机构宣传推介基金、发售基金份额、办理基金份额的申购和赎回等活动。()
【单选题】氨在体内能转变为无毒的含氮物质,这些物质中最多的是
【简答题】径向滑动轴承的结构形式主要有______和______两大类。
【判断题】鬼臼毒素能够抑制所形成微管的解聚而产生抗肿瘤活性
【单选题】8051 单片机的中断系统具有( ) 个外部中断。
【单选题】Online advertising is a form of advertising which uses the ________ to deliver promotional marketing messages to consumers.