单项选择题
M: I thought you were going to call Jack this morning, before he left for work.W: How was I supposed to know he’d be leaving so early?Q: What does the woman imply?（）
A．She had to leave for work before Jack.B．She didn't know Jack's telephone number.C．Jack had left the house before she called.D．She didn't know she was supposed to call Jack.
单项选择题 下列引起房地产价格上升的因素当中，使房地产保值而非真正增值的是（）。
单项选择题 房地产估价是对房地产在估价时点的价值进行（）的活动。
单项选择题 某宗土地50年使用权的价格为1000万元，其地上建筑物目前的市价为500万元，现探测其地下有铁矿资源，价值高达500万元，则该房地产的价格为（）。
