除了产品本身以外，还能影响产品需求的价格弹性的因素是（）。
A.产品的生产成本
B.可代替品的数量
C.产品的销售成本
D.其他产品的定价
参考答案：B
（）is known as a long hatch during loading operation.
A.The largest hatch of a ship
B.The hatch that is double rigged
C.The hatch where a disproportionate amount of cargo is atowed
D.The hatch where the most cargo is stowed
冷却系统设计原则？
