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【单选题】
与数字市场相比,传统市场有________A.
更低的搜索成本
B.
更强的网络效应
C.
更高的延迟的满足感
D.
更低的不对称性
E.
更高的交易费用
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举一反三
【单选题】Which of the following cities has the oldest Chinatown in North America?
A.
New York.
B.
San Francisco.
C.
Boston.
D.
San Diego.
【多选题】四冲程发动机,活塞由上止点向下运行到下止点时,此时发动机所处的行程可能是?
A.
进气行程终了,压缩开始
B.
压缩行程终了,做功开始
C.
做功行程终了,排气开始
D.
排气行程终了,进气开始
【单选题】In______, Chinatown has been the center of its Chinese community since the 1850s, which is a crowded and authentic ethnic neighborhood where Cantonese remains the first language for many.
A.
Boston
B.
New York
C.
Washington D.C.
D.
San Francisco
【单选题】The Indian old lady ________ live there ________. [ ]
A.
no; any more
B.
does not; any more
C.
no, any longer
D.
do not; any more
【单选题】The author thinks that worry（）
A.
never does any good in solving problems
B.
is a form. of emotional distress commonly found among people
C.
makes people more considerate
D.
drives people more active
【简答题】does not offer any scholarships?__________
【多选题】四冲程发动机,活塞由下止点向上运行到上止点时,此时发动机所处的行程可能是?
A.
进气行程终了，压缩开始
B.
压缩行程终了，做功开始
C.
做功行程终了，排气开始
D.
排气行程终了，进气开始
【单选题】In pure form , Si wafer does not contain any free charge carriers
A.
载体
B.
载波
C.
载流子
D.
卡车
【简答题】San Francisco has a very large “Chinatown". Thousands of Chinese live in Chinatown.
【单选题】Write ( ) letter when you want to extend a business invitation, such as an invitation to a party or other event.
A.
apology
B.
invitation
C.
congratulation
D.
appointment
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