单选题
Before the 1980s, the idea of health insurance was quite ______ to those living in the mainland of China.
A. overseas B. abroad C. foreign D. offshore
A
B
C
D
【正确答案】
C
【答案解析】
overseas：国外的，海外的；abroad：在国外；foreign：外国的，国外的，陌生的；offshore：离岸的，境外的
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