【单选题】Refer to Figure 1 . If the price of the good is $6, then consumer surplus is On the graph above, Q represents the quantity of the good and P represents the good's price.
【单选题】To come up with the best sides, you need a fresh mind. These travel and time-off benefits help everyone stay sharp . what's meaning of "stay sharp " here ?
【单选题】Which of the following expressions refers to the meaning of "take a short journey in order to do something for the guests, such as delivering or collecting parcels, calling taxi etc.