液压()系统是以传递动力为主。
参考答案:传动
看图,判断对“√”错“×”。
( ) 1. Are they his shorts?
( ) 2. Whose dress is this?
( ) 3. They are my shoes.
信度是用来表明测量工具的()。
A.效度
B.偏倚度
C.便利性
D.可靠性
E.敏感性