下列哪项不是控制性降压的适应证（）
A.颅内血管瘤
B.垂体瘤
C.全髋关节成形术
D.PDA结扎术
E.低血容量
参考答案：E
______with the size of the whole earth, the biggest ocean does not seem big at all.
A．Compare
B．Comparing
C．To compare
D．Compared
点景
