1.public class Test { 2.public static void main （String args[]） { 3.class Foo { 4.public int i = 3； 5.} 6.Object o = （Object） new Foo（）； 7.Foo foo = （Foo）o； 8.System.out.printIn（foo. i）； 9. } 10.} What is the result？（） [" Compilation will fail."," Compilation will succeed and the program will print “3”"," Compilation will succeed but the program will throw a ClassCastException at line 6."," Compilation will succeed but the program will throw a ClassCastException at line 7."]
风蚀
面波
最大无作用剂量
下列句子中“为”字表示被动的是（）。 ["夫颛臾，昔者先王以为东蒙主。","今不取，后世必为子孙忧。","不如早为之所。","身死国灭，为天下笑。"]
公路工程施工机械装备的配备原则是什么？
