—Were you at home yesterday?
—No, I________. I was ________ school.
A:
wasn't;at
B:
weren't; at
C:
weren't;in
D:
wasn't;in
厨房中的化学知识很多,下面是有关厨房中的常见操作或者常见现象,其中不属于氧化还原反应的是()