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【单选题】
小儿细菌性肺炎最主要的病原体是A.
链球菌
B.
肺炎双球菌
C.
葡萄球菌
D.
流感杆菌
E.
大肠杆菌
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举一反三
【单选题】If a production possibilities frontier is bowed outward, then the opportunity cost of producing more of the first good is highest when
A.
the economy is producing much of the first good and little of the second good.
B.
the economy is producing equal amounts of the first and second goods.
C.
the economy is producing little of the first good and much of the second good.
D.
None of the above is correct because the opportunity cost of producing more of the first good is constant.
【单选题】Giffen good is
A.
good whose demand curve slopes downward because the income effect is less than the substitution effect.
B.
good whose demand curve slopes upward becausethe (negative) income effect is larger than the substitution effect.
C.
good whose demand curve slopes downward becausethe (negative) income effect is larger than the substitution effect.
D.
good whose demand curve slopes downward because the (negative) income effect is as same as substitution effect.
【简答题】近代汽车防抱制动系统一般包括 、 、 三部分。
【单选题】A good is considered scarce in a society when
A.
more output of the good is possible.
B.
everyone in that society cannot have all they want of the good.
C.
the government restricts production of the good.
D.
only the richest people in the economy can buy all they want of the good.
【单选题】If the income elasticity of demand for a good is greater than one, the good is:
A.
a noncyclical normal good.
B.
a cyclical normal good.
C.
neither a normal nor an inferior good.
D.
an inferior good.
【单选题】A good is considered scarce in a society when ( )
A.
more output of the good is possible.
B.
everyone in that society cannot have all they want of the good.
C.
the government restricts production of the good.
D.
only the richest people in the economy can buy all they want ot the good.
【简答题】近代汽车防抱制动系统一般包括 、 、 三部分。
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