格林-巴利综合征患者的主要危险是()
A. 四肢瘫痪
B. 并发肺部感染、肺不张
C. 并发心肌炎、心力衰竭
D. 呼吸麻痹
E. 并发消化道出血
再生障碍性贫血的Bessman分类特点是()
A. MCV正常,RDW正常
B. MCV增加,RDW正常
C. MCV减低,RDW正常
D. MCV增加,RDW增加
E. MCV减低,RDW增加
由方形膜的上缘构成的韧带是()。
A. 杓会厌韧带
B. 室韧带
C. 声韧带
D. 环甲膜
E. 环气管韧带
How should the lifeboat sea painter be rigged?()
A. Spliced into the ring on the stem post
B. Secured to the inboard side of a forward thwart and led inboard of the falls
C. Secured by a toggle to the stem post and led outboard of the falls
D. Secured by a toggle around the outboard side of a forward thwart