72.正常成年人之步頻(cadence)與步速為何?
(A)步頻:110 steps/min,步速:1.4 m/sec
(B)步頻:70 steps/min,步速:5 km/hour
(C)步頻:110 steps/min,步速:5 m/sec
(D)步頻:70 steps/min,步速:14 m/sec
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統計: A(533), B(174), C(93), D(81), E(0) #886289
統計: A(533), B(174), C(93), D(81), E(0) #886289