【单选题】如下Java代码,输出的运行结果是() public class Test{ public static void main(String[] args) { List list = new ArrayList (); list.add("str1"); list.add(2, "str2"); String s = list.get(1); System.out.println(s); } }
【单选题】Most people retire from work between the ages of 60 and 65. This has【31】consequences, one economic and【32】psychological. Economically:【33】retired people receive a pension (养老金) from the government or ...