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【单选题】
如果一种物品的生产引起了负外部性,那么,社会成本曲线就在供给曲线,而且社会的最优曲线数量均衡数量。()
A.
上方;大于
B.
上方;小于
C.
下方;大于
D.
下方;小于
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举一反三
【单选题】--What’s this in English? --______.
A.
It’s a ID card.  
B.
It’s an ID card.
C.
ID card
【单选题】The author thought of his fiend's question as a good one, because ______.
A.
he also wanted to know who held such an opinion
B.
it made him recall something during his childhood
C.
like his friend, he also thought life was unfair
D.
he learned something from the question as a youngster
【简答题】Why does the writer think rope skipping also does good to one' s eyes? [A] Skipping the rope helps make one grow taller. [ B ] One has to act quickly when skipping the rope. [ C] Skipping the rope can...
【简答题】It’s fun to receive presents. It also feels good to give to others. So what’s the best way to budget(预算) your money, shop wisely and spend the least money if possible? Susan Beacham, from a company th...
【单选题】They are also worried _________ all the students are able to make good use of the spare time after school.
A.
about
B.
whether
C.
that
D.
what
【多选题】某奶茶店开业之初雇人排队以营造产品受欢迎的氛围,附近同类店家生意随之清淡。对此行为,下列说法错误的是:
A.
正当的营销行为
B.
构成混淆行为
C.
构成虚假宣传行为
D.
构成商业贿赂行为
【单选题】某奶茶店开业之初雇人排队以营造产品受欢迎的氛围,附近同类店家生意随之清淡。对此行为,下列说法正确的是
A.
正当的营销行为
B.
构成混淆行为
C.
构成虚假宣传行为
D.
构成商业贿赂行为
【多选题】无线传感网络的作用主要包括( )
A.
信息感知
B.
信息通信
C.
信息计算
D.
网络管理
【多选题】无线传感网络的作用主要包括( )
A.
信息感应
B.
信息通信
C.
信息计算
D.
网络管理
【单选题】College students want to find jobs ________ they can receive not only good pay but also a sense of satisfaction.
A.
that
B.
in that
C.
where
D.
from it
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