__是一种帮助确定哪些变量对过程总体结果影响最大的技术。(140703班统译) _____ is a technique that helps identify which variables have the most influence on the overall outcome of a process. A. Design of experiments 实验设计 B. Backward pass 向后通 C. Activity-on-arrow 活动上箭头 D. Crashing 崩溃