抢救心脏骤停心脏按压的次数应是()
A.40次/分
B.60次/分
C.80次/分
D.100次/分
E.100~120次/分
参考答案:D
I stood there patiently until he ________ his work.
A.has finished
B.would finish
C.had finished
D.finishes
关于“自体献血”叙述不正确的是()
A.自体血液4℃保存,术中回输
B.自体血液于-65℃保存,需要时回输
C.避免输血相关传染病
D.有可能引起同种免疫反应
E.节约血资源