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【简答题】
假设消费者的收入下降引起对鸡肉需求量的减少,而对土豆的需求量增加了。请问鸡肉与土豆哪种属于劣质品,哪种属于正常品?每种商品的均衡价格和均衡数量将如何变化?
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举一反三
【简答题】A person searches various websites for different reasons, such as school, work, or entertainment. For agers, many informative resources on the Internet can be used. As a matter of fact, there are ...
【简答题】电控汽油喷射式发动机燃料供给系统由 、 、和 组成。
【简答题】Hello. Boys and girls! My name is Alice Green. Alice is my first name. Green is my last name. I’m a girl in Beijing. I have black hair(头发) and I’m in a red jacket. My telephone number is 885-29051. I ...
【单选题】__ Alice, do you like traveling? __ Sure．I _____ to Beijing last year, but I _____ anywhere since then．
A.
went; didn’t go
B.
have gone; haven’t gone
C.
went; haven’t gone
D.
went ; hadn’t gone
【单选题】In modern society people have to pass various test for professional so that they can be qualified for a good job.
A.
standards
B.
perseverance
C.
certificates
D.
permission
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