Nationas are classified as "______" when seven percent or more of their people h

游客2024-09-29  10

问题 Nationas are classified as "______" when seven percent or more of their people have reached 65.

选项 A、aging
B、being aging
C、aged
D、being aged

答案 C

解析 aged意思为“年老的,老化的”。
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