维生素D缺乏性佝偻病时肌肉松弛。肌张力降低的原因是肌肉()
A.糖代谢障碍
B.脂肪代谢障碍
C.蛋白质代谢障碍
D.磷代谢障碍
E.钙代谢障碍
参考答案:A
A valiant guerrilla soldier was killed yesterday.
A.slender
B.haughty
C.brave
D.insane