Ⅱ度营养不良儿童,腹泻迁延不愈,其脱水多为()
A.等渗性脱水
B.低渗性脱水
C.高渗性脱水
D.低钙血症
E.高钾血症
参考答案:B
--- I’ve got the final Harry Potter book.
--- You will love it. I ____it twice already.
A.will read
B.am reading
C.have read
D.was reading
物体所受重力的大小与它的质量成______,重力的方向总是______.