A project team is in the design stage of a new mountain bike prototype. The team is in the process of identifying which type of frame and material will provide high performance at a low cost. Which of the following is the MOST likely technique used to determine these variables

A) Benefit/cost analysis.
B) Ishikawa diagram.
C) Design of experiments.
D) System flow chart.

根据证件持有人是否享有外交特权的礼遇，签证分为（）。

A.外交签证

B.礼遇签证

C.公务签证

D.普通签证