【单选题】He thinks the __________( 单价) is very attractive. A. unit price B. original price C. present price
【多选题】影响消费者购买行为的外部因素有( C、 F )
【单选题】The sales price of a car is $12,590, which is 20% off the original price. What is the original price?
【判断题】在测绘地形图时,等高距的大小是根据测图比例尺与测区地面坡度来确定。 ( )