题干

近几年,手机市场日新月异,升级换代速度很快,而价格却不断下跌,一些高档机型短短几个月就会出现下跌千元的情况,手机价格不断下跌的根本原因是

A:社会劳动生产率不断提高

B:手机供给超过需求

C:通货膨胀得到抑制,纸币发行量增加

D:通货紧缩造成的必然结果

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答案(点此获取答案解析)

A

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