委外单价取价顺序中的委外核价指的是哪里的价格?()
A.录入委外核价单
B.录入委外价格
C.录入供应商料件价格
D.录入品号信息中的标准委外价格
参考答案:B
— Bad luck. They didn't offer the job to me.
— ______ You've been well prepared for the interview.[ ]
A. So what?
B. What if?
C. How come?
D. What about?
解调()信号需要载波插入
A、普通调幅信号
B、调频信号
C、SSB抑制载波信号
D、SSB全载波信号