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【多选题】
采购管理的目标是A.
保障供应
B.
管理好信息
C.
费用最省
D.
管理好供应链
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反馈参考答案：
举一反三
【单选题】The bowed shape of the production possibilities frontier can be explained by the fact that
A.
all resources are scarce.
B.
economic growth is always occurring.
C.
the opportunity cost of one good in terms of the other depends on how much of each good the economy is producing.
D.
the only way to get more of one good is to get less of the other.
【判断题】The production possibilities frontier is bowed outward because the trade-offs between the production of any two goods are constant.
A.
正确
B.
错误
【单选题】关于心内电生理检查的描述，正确的是
A.
检查之前停用各种抗心律失常药物3个半衰期
B.
心内电生理检查时，电极导管只需放置到希氏束区和右心室心尖部
C.
依据电生理检查结果，可以指导对患者进行药物还是非药物治疗
D.
电生理检查室不需配备抢救药品和除颤器
E.
电生理检查的操作者只需熟悉心电图学知识，操作前不需培训
【单选题】The bowed production possibilities curve represents:
A.
constant opportunity costs.
B.
decreasing opportunity costs.
C.
increasing opportunity costs.
D.
none of the above
【单选题】来文与复文可为一件,这是一种比较特殊的一种规定。“来文与复文”,是对联系密切的来往性质的文件材料的概括性表达,也包括“去文与复文”,从文种上看包括
A.
请示与复函
B.
请示与报告
C.
函与批复
D.
通知与报告
【单选题】The bowed shape of the per-worker production function is caused by
A.
wealth effects that reduce labor supply.
B.
diminishing marginal productivity of capital.
C.
increasing marginal productivity of labor.
D.
increasing marginal productivity of capital.
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