下列发出存货的计价方法中，不适宜用于收发频繁的存货计价的是( )。
A．个别计价法
B．先进先出法
C．移动平均法
D．一次平均法
参考答案：A
— Did you tidy your room?
— No, I was going to tidy my room but I _____ visitors. [ ]
A. had
B. have
C. have had
D. will have
汽轮机级
