下列措施中可减少鼻咽纤维血管瘤术中出血的是()
A.DSA管栓塞
B.硬腭进路
C.控制性低血
D.颈外动脉结扎
E.鼻内镜手术
参考答案：A, C, D
This is a difficult and stressful job, but one _____ you can really help people.
A．that
B．where
C．which
D．of which
隔爆外壳变形长度超过50mm，凸凹深度超过5mm为失爆，整形后低于此规定仍为合格。（）
