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()。