两个因数同时扩大相同的倍数，积不变．______．（判断对错）
两个因数扩大相同的倍数，积就扩大这个数的平方倍，（两个因数不为0），
故答案为：错误．
用所给词的适当形式填空。
1. I ____________ (go) hiking last Sunday.
2. I like ____________ (read) books.
3. Did you ____________ (play) basketball?
4. She ____________ (clean) the room yesterday.
5. They ____________ (cook) noodles together last week.
间接加工法
