[单选] A decrease in quantity demanded
A. results in a movement downward and to the right along a demand curve.
B. results in a movement upward and to the left along a demand curve.
C. shifts the demand curve to the left.
D. shifts the demand curve to the right.
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[单选] Nemo rents 5 movies per month when the price is $3.00 per rental and 7 movies per month when the price is $2.50 per rental. Nemo’s demand demonstrates the law of
A. price.
B. supply.
C. demand.
D. income.
[单选] Which of the following would not shift the demand curve for mp3 players?
A. a decrease in the price of mp3 players
B. a fad that makes mp3 players more popular among 12-25 year olds
C. an increase in the price of digital music downloads, a complement for mp3 players
D. a decrease in the price of satellite radio, a substitute for mp3 players
[单选]你失业了,因此你购买的iTunes音乐下载量减少了。这表明您认为 iTunes 音乐下载是一个(n)
A. 豪华好。
B. 劣质。
C. 一般的好。
D. 互补品。
[单选]目前您每月购买十个冷冻披萨。你将在 12 月从大学毕业,你将在 1 月开始一份新工作。您没有计划在一月份购买冷冻比萨饼。对你来说,冷冻披萨是一个(n)
A. 替代品好。
B. 一般的好。
C. 次优。
D. 互补品。