容易潮解溶化的药物是()
A.芒硝
B.石膏
C.磁石
D.沉香
E.白矾
参考答案:A
Jack __________ have gone to bed earlier, now he’s late again.[ ]
A. must
B. would
C. should
D. shouldn’t
机体急性失血量超过全身血量多少时,即可引起失血性休克()
A.5%
B.10%
C.15%
D.20%
E.25%