轨道上不得有疤痕,轨顶面若有较小的疤痕或损伤时,可用()补平,再用砂轮磨光。 ["锡焊","电焊","铜焊","木屑","铁腻子"]
宋代的理学家不包括() ["王阳明","程颐","朱熹","程颢"]
目前我国常用的浓缩机有中心传动和()传动两种形式。 ["外缘","周边","液动","电机"]
专用要素
public class test { public static void add3 (Integer i){ int val = i.intValue ( ); val += 3; i = new Integer (val); } public static void main (String args [ ] ) { Integer i = new Integer (0); add3 (i); system.out.printIn (i.intValue ( ) ); } } What is the result?() [" Compilation will fail."," The program prints “0”."," The program prints “3”."," Compilation will succeed but an exception will be thrown at line 3."]
路基出现翻浆、弹软的原因?处理方法有哪些?