题干
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：whe
C：which
D：that
答案(点此获取答案解析）
A
的量程为0～0.6A，电流表
的量程为 0～3A，灯泡上标有“12V 3W”的字样．