A:新陈代谢旺盛时,结合水与自由水的比值升高
B:老年人细胞中含水量比婴儿要少
C:结合水可构成生物体的组织成分
D:自由水是细胞内良好溶剂
There will be _______ rain and _______ wind next week.
当军人在行军礼时,相关肌肉的运动情况是( )
— Can Jane and Jill swim?
— No, they .