男性,38岁,颅脑外伤。住院后病人的卧位是抬高床头15~30cm,其目的是
A.利用呼吸通畅B.防止呕吐窒息C.舒适D.利用血液循环E.减轻脑水肿
参考答案:E
----I can’t thank you more for the present you sent me the other day.
----____________.
A.With pleasure
B.No, thanks
C.Please don’t say so
D.You are welcome
微板法ABO血型定型试验中,血型试剂稀释后工作液的保存不应超过()