問題詳情
51. 圖(十八)為某鈣片之營養標示。已知Ca的原子量為40，H的原子量為1，C的原子量為12，O的原子量為16，且鈣片中的鈣成分皆來自CaCO3，則此鈣片中含有CaCO3的重量百分比為多少？ 
(A) 30％
(B) 45％
(C) 60％
(D) 90％
(A) 30％
(B) 45％
(C) 60％
(D) 90％
參考答案
答案：D
難度：困難0.275862
統計：A(2),B(6),C(6),D(8),E(0)
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