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【多选题】
民航安检对象为A.
旅客及其行李
B.
货物及邮件
C.
外交邮袋
D.
大使夫妇的行李
E.
佩带机场控制区证件的工作人员
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举一反三
【简答题】Refer to Figure 7-1. When the price rises from P1 to P2, consumer surplus (7.0分)A. increases by an amount equal to A. B. decreases by an amount equal to B+C. C. increases by an amount equal to B+C. D....
【判断题】Suppose that when the price rises by 10% for a particular good, the quantity demanded of that good falls by 20%. The price elasticity of demand for this good is equal to 2.0.
A.
正确
B.
错误
【单选题】When the price rises from $25 to $35, producer surplus ________ for a total producer surplus of ________.
A.
increases by $10; $30
B.
decreases by $10; $30
C.
increases by $30; $60
D.
decreases by $35; $100
【单选题】指出下列类型转换中正确的是______________。
A.
int i= ’ A ’ ;
B.
long L=8.4f ;
C.
int i=(float)8.9 ;
D.
int i=8.3 ;
【单选题】The table gives some data on the supply of roses in a small town. When the price rises from $15 a dozen to $25 a dozen, the elasticity of supply is ( ).
A.
1.25
B.
5.00
C.
0.20
D.
0.80
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