血中还原血红蛋白至少达多少时,皮肤黏膜可出现发绀()。 A.>70g/L B.>65 发布时间:2017-06-10 19:44 │ 来源:www.tikuol.com 题型:单项选择题 问题: 血中还原血红蛋白至少达多少时,皮肤黏膜可出现发绀()。A.>70g/LB.>65g/LC.>60g/LD.>55g/LE.>50g/L
题型:单项选择题 Don't talk so __________. I can't understand what you're talking. [ ]A. slowly B. clearly C. easily D. quickly 查看答案