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【单选题】
有关子宫内膜异位症的描述，下列错误的是A.
指子宫内膜异位到子宫以外的部位
B.
指有活动功能的子宫内膜组织出现在子宫腔内壁以外的部位
C.
近年，子宫内膜异位症的发病率明显上升
D.
此病多见于生育年龄妇女
E.
是近年常见的妇科疾病之一
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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.
【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。
【简答题】根据图3-3-2所示锉刀可知,锉刀的结构由 和 组成。
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