問題詳情
65.張老師若要配製 500ppm 的漂白水 10 公升，請問應加入市售 5%漂白水多少毫升？
(A)10
(B)20
(C)100
(D)200。
(A)10
(B)20
(C)100
(D)200。
參考答案
答案：C
難度：適中0.618728
統計：A(448),B(285),C(1381),D(118),E(0)
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