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【多选题】
下列说法正确的是( )A.
公共产品的存在引起“搭便车”的问题
B.
所有的公共产品均由政府提供
C.
当没有政府干预时，市场总会产生有效率的结果
D.
市场失灵论赋予政府这样一项任务：当市场不能有效配置资源时，政府应改善这种情况
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【单选题】下列表述属于规范分析的是( )
A.
流动性陷阱下，货币政策无效
B.
中央银行应该提高利率来控制通货膨胀
C.
利率上升会引起投资下降
D.
需求等于供给决定均衡的价格产量
【单选题】下列表述中是规范分析的是（ ）
A.
社会面临着通货膨胀与失业之间的短期权衡取舍
B.
减少货币增长率将降低通货膨胀率
C.
社会应该要求福利者去找工作
D.
美联储将低货币增长率
【单选题】The bread comes in many different shapes; hearts are the most popular. Shapes are .
A.
the way things taste
B.
the outer form
C.
ways to cook food
【单选题】Fashion designers are very creative: not only ____ the material into different shapes, but also make patterns form different colors.
A.
they change
B.
do they change
C.
they have changed
D.
have they changed
【简答题】A．Collecting objects on the beach. B．Creating models of different shapes. C．Mapping currents in the ocean. D．Tracking water pollution.
【判断题】The multiplicity of functions carried out by proteins arises from the huge number of different shapes they adopt.
A.
正确
B.
错误
【单选题】下列表述中是规范分析的是( )
A.
社会面临着通货膨胀与失业之间的短期权衡取舍
B.
减少货币增长率将降低通货膨胀率
C.
社会应该要求福利者去找工作
D.
美联储将降低货币增长率
【简答题】The method for beer has changed over time. Hops (啤酒花), for example, which give many a modern beer its bitter flavor, are a __1__ recent addition to the beverage. This was first mentioned in ref...
【简答题】The method for beer has changed over time. Hops (啤酒花), for example, which give many a modern beer its bitter flavor, are a __26__ recent addition to the beverage. This was first mentioned in re...
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