题目内容
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[主观题]
Change in demand vs.change in quantity demanded 需求变化与需求量的变化
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第7题
A.leave; for
B.leave; to
C.left; to
D.to be left; for
第8题
_between supply and demand, but it is no easy task
A) equation B) formula C) balance D) pattern
第10题
A.invitation
B.challenge
C.request
D.demand