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【单选题】
What is the total surplus of a market?A.
the sum of consumer surplus and producer deficit
B.
the sum of consumer surplus and producer surplus
C.
the difference between the consumer surplus and producer surplus
D.
the difference between the highest price that a consumer is willing to pay and the lowest price that a producer is willing to sell
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举一反三
【单选题】According to the passage, what are third party screeners?
A.
Those who help detect deceptions.
B.
Those who help employ workers.
C.
Those who help glee counseling.
D.
Those who help write resumes.
【单选题】(Paragraph 4) In the third group, only 31 percent tried to help.
A.
More people decided not to help.
B.
The third group had many people.
C.
Thirty-one percent was a big number.
【单选题】It is said that _____ of the students like to help their parents with the housework
A.
third-fifths
B.
three-fifths
C.
thirds-fifth
D.
three-fifth
【单选题】One third of the class _____ agreed to be volunteers to help the aged this vocation.
A.
are
B.
is
C.
has
D.
have
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