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【多选题】
下列数据,哪些是引文数据库
A.
CSSCI
B.
Emerald
C.
PQDT
D.
EBSCO
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参考答案：
举一反三
【判断题】如果微分方程的解中含有任意常数,且所含的独立的任意常数的个数和方程的阶数相同,则称这样的解为微分方程的通解.
A.
正确
B.
错误
查看完整题目与答案
【单选题】The Leontief paradox states that __________
A.
owners of abundant factor do not gain from trade.
B.
US exports are less capital-intensive than US imports.
C.
prices of factors of production are not equalized across countries.
D.
countries export goods that use available technology inefficiently.
查看完整题目与答案
【单选题】The Leontief paradox:
A.
Suggested that the U.S. exports labor-intensive goods
B.
Was applied to the product life cycle theory
C.
Found that national income differences underlie world trade patterns
D.
Implied that diseconomies of scale occur at low output levels
查看完整题目与答案
【单选题】桡骨头半脱位最常见的年龄是（）
A.
1岁以下
B.
2岁以下
C.
4岁以下
D.
4～6岁
E.
6～10岁
查看完整题目与答案
【简答题】患儿，在高约50cm床上玩耍，不慎跌落地面，左肘部拒绝触碰，前来我院急诊就诊。查体见小儿不肯用左手取物和活动肘部，局部无明显畸形。首选的检查是A、X线片 B、神经电生理检测 C、CT平扫 D、B超 E、MRI F、心电图 若查体见肘部畸形，首选的检查是A、左肱骨正侧位X线片 B、左肘关节正侧位X线片 C、左尺桡骨正侧位X线片 D、肱骨CT平扫 E、肘关节MRI F、肘关节CT 若X线片检查阴性，最...
查看完整题目与答案
【判断题】微分方程的通解中所含独立的任意常数的个数必须与微分方程的阶数相同。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The Leontief paradox provided:
A.
Support for the principle of absolute advantage
B.
Support for the factor endowment model
C.
Evidence against the factor endowment model
D.
Evidence against the principle of absolute advantage
查看完整题目与答案
【单选题】微分方程 的通解中所含相互独立的任意常数的个数为( )
A.
2
B.
5
C.
4
D.
3
查看完整题目与答案
【单选题】The Leontief Paradox
A.
supported the validity of the Ricardian theory of comparative advantage.
B.
supported the validity of the Heckscher-Ohlin model.
C.
failed to support the validity of the Ricardian theory.
D.
failed to support the validity of the Heckscher-Ohlin model.
E.
proved that the U.S.economy is different from all others.
查看完整题目与答案
【单选题】The Leontief paradox:
A.
Was applied to the product life cycle theory
B.
Suggested that the U.S. exports labor-intensive goods
C.
Found that national income differences underlie world trade patterns
D.
Implied that diseconomies of scale occur at low output levels
查看完整题目与答案
相关题目：
【判断题】如果微分方程的解中含有任意常数,且所含的独立的任意常数的个数和方程的阶数相同,则称这样的解为微分方程的通解.
A.
正确
B.
错误
查看完整题目与答案
【单选题】The Leontief paradox states that __________
A.
owners of abundant factor do not gain from trade.
B.
US exports are less capital-intensive than US imports.
C.
prices of factors of production are not equalized across countries.
D.
countries export goods that use available technology inefficiently.
查看完整题目与答案
【单选题】The Leontief paradox:
A.
Suggested that the U.S. exports labor-intensive goods
B.
Was applied to the product life cycle theory
C.
Found that national income differences underlie world trade patterns
D.
Implied that diseconomies of scale occur at low output levels
查看完整题目与答案
【单选题】桡骨头半脱位最常见的年龄是（）
A.
1岁以下
B.
2岁以下
C.
4岁以下
D.
4～6岁
E.
6～10岁
查看完整题目与答案
【简答题】患儿，在高约50cm床上玩耍，不慎跌落地面，左肘部拒绝触碰，前来我院急诊就诊。查体见小儿不肯用左手取物和活动肘部，局部无明显畸形。首选的检查是A、X线片 B、神经电生理检测 C、CT平扫 D、B超 E、MRI F、心电图 若查体见肘部畸形，首选的检查是A、左肱骨正侧位X线片 B、左肘关节正侧位X线片 C、左尺桡骨正侧位X线片 D、肱骨CT平扫 E、肘关节MRI F、肘关节CT 若X线片检查阴性，最...
查看完整题目与答案
【判断题】微分方程的通解中所含独立的任意常数的个数必须与微分方程的阶数相同。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The Leontief paradox provided:
A.
Support for the principle of absolute advantage
B.
Support for the factor endowment model
C.
Evidence against the factor endowment model
D.
Evidence against the principle of absolute advantage
查看完整题目与答案
【单选题】微分方程 的通解中所含相互独立的任意常数的个数为( )
A.
2
B.
5
C.
4
D.
3
查看完整题目与答案
【单选题】The Leontief Paradox
A.
supported the validity of the Ricardian theory of comparative advantage.
B.
supported the validity of the Heckscher-Ohlin model.
C.
failed to support the validity of the Ricardian theory.
D.
failed to support the validity of the Heckscher-Ohlin model.
E.
proved that the U.S.economy is different from all others.
查看完整题目与答案
【单选题】The Leontief paradox:
A.
Was applied to the product life cycle theory
B.
Suggested that the U.S. exports labor-intensive goods
C.
Found that national income differences underlie world trade patterns
D.
Implied that diseconomies of scale occur at low output levels
查看完整题目与答案
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