药物的分子量对肺部吸收影响很大，下列药物中哪种吸收最快
A．维生素B12
B．菊糖
C．肝素
D．白蛋白
E．葡聚糖
参考答案：A
---Do you feel like ______ or shall we go by bus?
---I prefer _______ , but we had better take a taxi, for time is short.
A．to walk; walking
B．walking; to walk
C．walking; walking
D．to walk; to walk
自我保健记录有哪些内容？
