女,22岁,肠梗阻术后要求术后镇痛,拟以硬膜外吗啡镇痛。
最必要的监测是()
A.血压
B.心率
C.氧饱和度
D.心电图
E.二氧化碳图
参考答案:C
—Why did you leave without a word of warning to Robert?
—But what _______ otherwise? He never likes to listen to me.[ ]
A. could I do
B. could I have done
C. must I have done
D. should I do
学校是人们共同学习成长的场所。