判读标志
1. class A { 2. public int getNumber(int a) { 3. return a + 1; 4. } 5. } 6. 7. class B extends A { 8. public int getNumber (int a) { 9. return a + 2 10. } 11. 12. public static void main (String args[]) { 13. A a = new B(); 14. System.out.printIn(a.getNumber(0)); 15. } 16. } What is the result?() [" Compilation succeeds and 1 is printed."," Compilation succeeds and 2 is printed."," An error at line 8 causes compilation to fail."," An error at line 13 causes compilation to fail."," An error at line 14 causes compilation to fail."]
广义环境质量调控
以下哪些工具可以帮助用户找到效果好的关键词:() ["百度指数","转化跟踪工具","百度商桥","百度统计"]
《关于积极推进“互联网+”行动的指导意见》是()的重要举措。 ["推动互联网由消费领域向生产领域拓展","加速提升产业发展水平","增强各行业创新能力","构筑经济社会发展新优势和新动能"]
民族传统体育