使用利尿药后期的降压机制是()
A.排Na+利尿,降低血容量
B.降低血浆肾素活性
C.增高血浆肾素活性
D.抑制醛固酮分泌
E.减少血管平滑肌细胞内Na+
参考答案:E
We were all very much attracted by the beautiful scenery________we set foot in the village. [ ]
A. quickly
B. suddenly
C. finally
D. immediately
A.比热容、热值都变为原为的二分之一
B.比热容、热值都不变
C.比热容不变,热值变为原来的二分之一
D.热值不变,比热容变为原来的二分之一