摩擦离合器传递动力大小主要取决于()。
A.摩擦面积
B.压紧力
C.摩擦因素
D.驾驶员操纵行为
参考答案:A, B, C
化学冻伤一般分为三度,损伤到表皮的化学冻伤级别是()度。
A、一
B、二
C、三
Project selection methods involve measuring value or attractiveness to the project owner or sponsor and may include other organizational decision criteria ()is not a project selection method.
A.Benefitcontribution
B.Expertjudgment
C.Scoringmodels
D.Flowcharting