题目内容
According to the United Nations, an aging society refers to one ____ 10 percent or more of the population is over 60, or 7 percent or more is over 65.
| A.where | B.when | C.which | D.that |
A
这题考查定语从句的用法,先行词是one代指an aging society“一个老龄化社会”,定语从句中不缺主语,宾语,表语,所以填where。
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