单项选择题

According to the passage, choices must be made because________.

A．resources are abundant
B．there is too much for us to do
C．there are only 24 waking hours in a day
D．our means are limited, but our wants are unlimited

<上一题目录下一题>

热门试题

单项选择题

According to the passage, economists define opportunity cost as ________ .

A．an opportunity given up in terms of cash
B．the cost of a better choice measured in terms of cash
C．giving up a specific choice for the next best alternative
D．the cost of a specific choice measured in terms of any alternative choice

单项选择题

To achieve success in your career, the most important factor, according to the passage, is to________.

A．project a favorable image to the people around you
B．perform well your tasks given by your superiors
C．let your superiors know how good you are
D．work as a consultant to your superiors