变动成本法是将成本按经济用途分类，将全部生产成本作为产品成本，将非生产成本作为期间成本，我国又将此法称为“制造成本法”
参考答案：错
根据所给提示，完成句子。每空一词，含缩略词。
1. She does her homework every day. (变否定句)
She her homework every day.
2. They knew little about this matter. (变反意疑问句)
They knew little about this matter, ?
3. The police took the sick boy to hospital yesterday. (改为被动语态)
The sick boy to hospital by the police yesterday.
4. He decided to walk there because the bus broke down on the way. (同义句)
He up his to walk there because the bus stopped to work on the way.
5. It's said that he borrowed this book two days ago. (同义句)
People say that he this book for two days.
在数铣中，（）可作为控制介质
A、钢笔
B、CRT
C、计算器
D、软磁盘
