有一高血压病患儿测血浆肾素、血管紧张素Ⅱ、醛固酮水平均明显增高。

哪项是调节血压的重要环节（）

A.肾素的释放

B.血清血管紧张素转换酶的活性增强

C.醛固酮的释放

D.血压的升高

E.血钠的升高

The margin plate is the（）.

A.outboard strake of plating on each side of an innerbottom

B.outer strake of plating on each side of the main deck of a vessel

C.plate which sits atop the center vertical keel

D.uppermost continuous strake of plating on the shell of a vessel