08-475道岔捣固车走行时动力传动路线是什么？
参考答案：
柴油机→传动轴→液力变距器→变速箱→输出传动轴→分动差动箱→传动轴→车轴齿轮箱
—Do you have any idea what Paul does all day?
—As I know,he spends at least as much time playing as he______.
A．writes
B．does writing
C．is writing
D．does write
小球重20N，用力的图示法在图中按给出的标度画出它所受的重力．
