产品销量为4000件,单位变动成本为10元,固定成本总额为30000元,税后目标利润为12000元,所得税率为40%,则税后目标利润实现的单价应为()
A. 25
B. 22.5
C. 24
D. 18
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当左右发动机推力不一样时PFCS会作动:()。
A. 付翼
B. 襟付翼
C. 扰流板
D. 方向舵
A towboat is pushing barges ahead at a dangerously fast speed when().
A. the towboat vibrates when backing down
B. the roostertail exceeds the height of the main deck
C. a strain is placed on the face wires
D. water comes over the foredeck of the lead barge