12.Calcium ________ causes many elderly people to suffer from broken bones so the elderly should drink more milk.
(A)efficiency
(B)proficiency
(C)deficiency
(D)frequency
詳解 (共 2 筆)
未解鎖
鈣質的_缺乏_導致老人骨質嚴重不足,所以...
未解鎖
(A)efficiency 效率(B)p...
私人筆記 (共 1 筆)
未解鎖
答案:(C) deficiency /d...