公司之标准化文件分为()。
A.二阶文件
B.三阶文件
C.四阶文件
D.五阶文件
参考答案:C
A: My apartment is only 10 minutes’ walk from the office. Why don’t you drop by some timeB: ().
A. Because I didn’t know you live so close by.
B. Because I didn’t want to bother you.
C. I’d love to. Can I take my roommate along
D. That’s OK. I’ll be there soon.
炸制法的关键在于控制()。