终末血尿的血液来自()
A.肾
B.输尿管
C.膀胱顶部
D.膀胱颈部
E.前 * *
参考答案:D
From the date________on the coin, we knew that it was made 500 years ago. [ ]
A. marking
B. marked
C. to be marked
D. having marked
盐酸、稀硫酸等酸在水溶液里电离出的阳离子全部是______,氢氧化钠、氢氧化钙在水溶液里电离出的阴离子全部是______,所以酸、碱各具有通性.