期货价格不具有的特点是（） ["权威性","超前性","连续性","不变性"]
简述研究市场有效性对投资者的意义
人体单位时间内的传导散热量，仅取决于下列因素（）。 ["皮肤与接触物体的温差","皮肤与物体的接触面积","物体的传导热系数","上述全部因素"]
保险的主要目的是（） ["投资","储蓄","损失补偿","欺诈"]
You have a computer that runs Windows Vista. You need to configure Windows Fax and Scan to connect to a shared fax. What should you do?（） ["A","B","C","D"]
土方工程按其工程类型可分为几种？
