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【单选题】
劳动－闲暇模型存在不足不包括：A.
把劳动者个人看作完全“独立” 和“自由”的人，他的工作决策不受其他人的影响和约束，也不影响其他人的工作决策
B.
假定劳动者个人的工作决策在生命的不同阶段（青年、中年以及老年）是一样的，没有差别
C.
把劳动供给者看做完全同质
D.
把个人可自由支配时间简单划分为工作时间和闲暇时间两类，忽略了家庭生产时间（做饭带孩子）以及家庭的生产功能
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举一反三
【单选题】Choose the sentence that can be used as the topic sentence.
A.
Technology helps us get information at much higher speed.
B.
There are online forums (论坛) where you can ask questions and get replies from other people.
C.
It will take you hours to first find the right books, and then browse through them. Fortunately, we've got the internet now.
D.
Suppose you have to look up some information in the library.
E.
With those powerful search engines provided by websites like google.com or wiki.com, searching for information has turned from a time-consuming task to a pleasant experience.
【单选题】Gateways to storefronts and e-malls are
A.
shopping portals.
B.
shopbots.
C.
shopping browsers.
D.
intelligent search engines.
【单选题】They help you find specific websites quickly and make it easy to get information. T h ey are free. However, some of the websites are bad, or old, or not relevant to you. Sometimes it ’ s difficult to ...
A.
E-mail.
B.
Instant Messenger.
C.
Shopping Online.
D.
Search Engines.
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