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【多选题】
下列各量中,属于偏摩尔量的是( )。A.
B.
C.
D.
E.
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】If the cross-price elasticity between two goods is negative, the two goods are likely to be
A.
luxuries.
B.
necessities.
C.
complements.
D.
substitutes.
【简答题】常见的托盘有 ( )、不锈钢托盘、( )、 木质托盘等。
【单选题】Two goods are complements if the:
A.
price elasticity of each is greater than one.
B.
income elasticity of each is negative.
C.
cross-price elasticity is negative.
D.
cross-price elasticity is positive.
【单选题】The difference between the control group and the experimental group was______.
A.
the training that parents received
B.
the age of the children
C.
the books that were read
D.
the number of the children
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