【单选题】Which of the listed conditions can be considered as the single greatest cause of accidents?
B.
Excessive knowledge or skill
【简答题】普通 V 带已标准化,在 Y 、 A 、 C 、 E 几种带中,承载能力最高的是 _____ 型带。
【简答题】Which of the following-is NOT mentioned as a cause of the boating accidents?
【单选题】In Heinrich's causal chain of accidents, heredity and ( ) are regarded as the root causes of accidents.
【单选题】在各种普通V带中,()型V带传递功率最小
【单选题】Which of the following is NOT mentioned as a cause of the boating accidents.
B.
Bad weather conditions.
C.
Blockage of waterways.
D.
Lack of safety measures.
【判断题】汽车空调暖风系统可以减少空气中的水分,达到除湿的目的。
【判断题】The first type of hazard sources determines the frequency of accidents.
【判断题】在Y、Z、A、B、C、D、E七种普通V带型号中,Y型的截面尺寸最大,E型的截面尺寸最小。( )
【判断题】在Y、Z、A、B、C、D、E七种普通V带型号中,Y型的截面积最大,E型的截面积最小。