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【简答题】
机构是用来传递 和 的构件系统。
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举一反三
【单选题】Papa made a ____ of agreement though his face clouded at the mention of Grandma’s name.
A.
point
B.
sign
C.
example
D.
mark
【简答题】公共财政的理论基础是“公共产品”与“市场失灵”理论。( )
【单选题】A ________ is a set of interdependent organizations that help make a product or service available for use or consumption by the consumer or business user.
A.
product line
B.
product delivery network
C.
marketing channel
D.
consumer base
【简答题】v. to take in a liquid, gas or other substance from the suce or space around
【单选题】Which of the following does not influence the demand for a product?______.
A.
Consumer income
B.
The number of firms in the market
C.
The price of complementary goods
D.
The price of substitute goods
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