Which three of these are benefits of telepresence and video collaboration?（） ["reduce the need to personalize communications with customers","do more with less","eliminate miscommunication","influence competitive advantage and business agility through faster decision-making and new business processes and models","transform your business and organization and be greener","provide a unified tool for all business processe"]
期货条约必不可少的要素有（） ["标的产品","成交价格","成交地点","成交数量","成交期限"]
简述影响幼儿智力发展的因素。
有效市场的条件有哪些？
人体单位时间内的对流传热量仅取决于下列因素（）。 ["空气流动速度和皮肤表面积","对流传热系数和皮温","气温和服装热阻值","上述全部因素"]
功能型产品和创新型产品的各自特点是什么？分别适宜于采取哪种供应链设计策略？
