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单选题 The projected government spending on Social Security, Medicare, and Medicaid as a percentage of GDP is expected to increase from

A. less than one percent in 1950 to over 50 percent in 2070

B. less than one percent in 1950 to almost 20 percent in 2070

C. 10 percent in 1950 to over 50 percent in 2070

D. 20 percent in 1950 to almost 40 percent in 2070

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时间:2025-12-23 06:28:25

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