翻译:Marketing occurs when pople decide to satisfy needs and wants through exchange.Exchange is the act of obtaining a desired object from someone by offering something in returen. Exchange is only of many ways people can obtain adesired object.
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参考答案:
举一反三
【单选题】--- Listen! Sally ___ the violin in the garden.
A.
- It sounds nice.
B.
plays
C.
played
D.
is playing
E.
has played
F.
:C
G.
:选择题
H.
. I like short novels, but I __a long novel these days.