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【单选题】
网络外部性和( )的存在导致了不断增长的收益,但同时也使得市场变得相当不稳定。A.
负反馈
B.
临界容量
C.
正反馈
D.
消费者偏好
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反馈参考答案：
举一反三
【简答题】诈病性自伤的特点是什么?
【简答题】He took a prominent and active part in the investigations which led ultimately to some r______changes in the government policy.
【多选题】诈病性自伤的特点是：( )
A.
故意的自伤行为
B.
带有明显欺骗性质
C.
企图达到特定目的的自伤行为
D.
诈病性自伤者常在自己身上弄一个伤口，造成组织缺损及疼痛效果
E.
将伤口展示于别人，以求激起对方情绪上的反应获得关注和同情
【简答题】During inflation some commodities may be falling in price and some may be rising, but the commodities r 7 in prices are dominant, and they exert an upward force on the general price level.
【简答题】Some developing countries r____ on exports for jobs and economic growth.
【简答题】阅读短文，选择正确答案。 Hi, dear boys and girls! Do you know how to be a healthy kid? Here are some rules you should follow. First, eat different foods, especially fruit and vegetables. You may have a favourite ...
【单选题】With some men dressing down and some other men flaunting their looks, it is really hard to tell they are gay or ______
A.
straight
B.
homosexual
C.
beautiful
D.
sad
【单选题】Now,some of them have retired at home,and some still take their education jobs and teach
A.
r next generation.
B.
expose...to
C.
adhere to
D.
reversed
E.
exposure
F.
handle
G.
take liberty with
H.
adolescence
I.
lay hands on
J.
exterior K. individual’s
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