我国的有关法律规定，公民具有政治上的行为能力的法定起始年龄是18岁。 ( )
参考答案：对
如何判定曳引轮的轮槽是否已严重磨损？
Many teachers believe that children learn _____ life, not just from their textbooks. [ ]
A. of
B. from
C. for
D. with
