大数据的应用价值主要体现在以下哪几个方面
A. 有助于准确进行旅游市场定位
B. 成为旅游市场营销的重要工具
C. 支撑旅游行业收益管理
D. 对有价值的信息加工挖掘
对旅游市场的准确把握是旅游经营取得成功的关键。
A. 对
B. 错
It is my_________ belief that an effective partnership approach between police and the public is absolutely necessary.
A. firmed
B. firming
C. firms
D. firm
He broke his contract with the ________.
A. firms
B. firm
C. firming
D. firmed