問題詳情

13.One common cause of Osteoporosis, or thinning bones, is the____of nutrients such as calcium and Vitamin D.
(A)defiance
(B) deficiency
(C) definition
(D) deflection

參考答案

答案:B
難度:適中0.569045
統計:A(79),B(614),C(197),D(189),E(0)

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