食品中亚硫酸盐的定量测定，通常采用盐酸副玫瑰苯胺法。( )
参考答案：对
—Hello, John. This is Alice. I'm calling from work. How's your mother feeling?
—________. Mum is out of hospital, but she has to stay in bed a few more days.
A．You're welcome
B．That was thoughtful of you
C．What a pleasure
D．By all means
不属于媒体范畴的是（）。
