在生产中，随着物料的不断给入，轻重产物不断的从跳汰机中排出，构成了连续的跳汰过程。
参考答案：对
The type of contract where the buyer incurs opportunity cost but little or no additional cost risk is called （）.
A．fixed-price with incentive
B．firm-fixed-price
C．fixed-price with economic price adjustment
D．fixed-price with right of renewal
断点在平面图上的组合应遵循的一般规律有哪些？
