package test1; public class Test1 { static int x = 42; } package test2; public class Test2 extends test1.Test1 { public static void main(String[] args) { System.out.println(“x = “ + x); } } What is the result?() [" x = 0"," x = 42"," Compilation fails because of an error in line 2 of class Test2."," Compilation fails because of an error in line 3 of class Test1."," Compilation fails because of an error in line 4 of class Test2."]
检查灶具时,有哪些隐患是常见的?
对于县级政府颁发的科学、教育、技术、文化、卫生、体育、环境保护等方面的奖金,应当() [" 征收个人所得税"," 适当减征个人所得税"," 免征个人所得税"," 减半征收个人所得税"]
一台变压器的负载电流增大后,引起副边电压升高,这个负载一定是()。 ["纯电阻性负载","电容性负载","电感性负载"]
class A { protected int method1(int a, int b) { return 0; } } Which two are valid in a class that extends class A?() [" public int method1(int a, int b) { return 0; }"," private int method1(int a, int b) { return 0; }"," private int method1(int a, long b) { return 0; }"," public short method1(int a, int b) { return 0: }"," static protected int method1(int a, int b) { return 0; }"]
国境卫生检疫法