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【单选题】
IBM公司的会计员、保管员、采购员，都懂得他们的工作是如何帮助顾客，他们在礼貌接待和应答顾客方面过训练并受到激励。这是（ ）。A.
大市场营销观念的成功运用
B.
市场营销观念的成功运用
C.
关系营销观念的成功运用
D.
全员营销观念的成功运用
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举一反三
【单选题】If the cross-price elasticity of two goods is negative, then those two goods are
A.
substitutes.
B.
complements.
C.
normal goods.
D.
inferior goods.
【单选题】When can two countries gain from trading two goods?
A.
when the first country can only produce the first good and the second country can only produce the second good
B.
when the first country can produce both goods, but can only produce the second good at great cost, and the second country can produce both goods, but can only produce the first good at great cost
C.
when the first country is better at producing both goods and the second country is worse at producing both goods
D.
Two countries could gain from trading two goods under all of the above conditions.
【单选题】If the cross-price elasticity of two goods is negative, then the two goods are
A.
necessities.
B.
complements.
C.
normal goods.
D.
inferior goods.
【简答题】已知y=f(arcsinx)， ，求y'| x=0
【单选题】If the cross-price elasticity of two goods is positive, then those two goods are_________.
A.
inferior goods
B.
normal goods
C.
complements
D.
substitutes
【简答题】设y=(e x +log 3 x)arcsinx，求y'．
【简答题】设y=(1+x 2 )arctanx，求y"．
【简答题】设y=arcsinx及y=arccosx，求y'.
【单选题】If the cross price elasticity of demand between two goods is positive, then the two goods are
A.
Complementary goods
B.
Inferior goods
C.
Unrelated goods
D.
Substitute goods
【单选题】If the cross-price elasticity of two goods is negative, then those two goods are_________
A.
normal goods
B.
complements
C.
necessities
D.
inferior goods
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