简述刺蛾类的防治方法.
参考答案：
（1）园林技术防治：（2）物理防治：（3）化学防治：（4）生物防治
一质点在X轴上运动，各个时刻的位置坐标如下表，则此质点开始运动后”
第几秒内位移最大？
A．1s B．2s C．3s D．4s
25. As soon as I got home, my father asked ______ with me.
A．what the matter was
B．how the matter was
C．how was the matter
D．what was the matter
