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【多选题】
20世纪70年代末,资本主义各国开始调整本国社会保障制度,原因包括( )方面。A.
经济萧条的发生
B.
提高保障水平
C.
造成了劳动积极性的下降
D.
社会保障管理效率低下
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A.
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B.
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C.
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D.
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A.
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B.
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Killed
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