对硬盘中数据实现输入输出传送的方式（）
A、只采取程序查询等待方式C
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Isthere______________totellus?No,nothing.
Workisanimportantdeterminateofhealth.Itcaninfluencehealthpositivelyornegatively.
Shonasaysthatinherquestionnaireheraimwas____.
ThissignsinAmericarepresents:
