59. 「老化指數」是以何種方式呈現?
(A)比例(ratio)
(B)分率(proportion)
(C)比率(rate)
(D)百分比(percent)
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統計: A(415), B(17), C(140), D(132), E(0) #2851441
統計: A(415), B(17), C(140), D(132), E(0) #2851441