从卧位到立位时,人体会发生血流的变化而血压保持相对稳定。
此时,正常成年人静脉可容纳多少血液
A.100ml
B.200ml
C.300ml
D.400ml
E.500ml
参考答案:E
It takes ______ people ______ the work. [ ]
A. hundreds of, finishing
B. hundred of, to finish
C. hundreds of, to finish
D. hundred of, finishing
四肢大关节脱位治疗原则