新产品代替老产品之前不需要进行市场调查
A. 对
B. 错
以下哪些时机不适合开展市场调查()
A. 新产品代替老产品之前
B. 调查成本超过收益
C. 缺乏资金
D. 错过市场时机
E. 产品成功推向市场之后
900 句 T or F748[音频]The thunderstorm ahead is becoming weaker and 10 miles right deviation to the left is requested
A. 对
B. 错
900 句 T or F 24 words 446[音频]The flight crew required to make emergency descent to 8000feet because they encountered radpid depressurization.
A. 对
B. 错