小儿气管插管深度的推算公式是()
A.年龄(岁)+18
B.年龄(岁)/4+4
C.年龄(岁)/2+12
D.年龄×2+8
E.年龄/4+6
参考答案:C
— Do you know _____ or not it's impolite to smoke during a meal in France?
— Yes, it's not impolite. [ ]
A. that
B. whether
C. if
美术课程具有()的性质。
A.综合
B.人文
C.审美
D.传承