【单选题】Public officials and candidates for public office routinely use public opinion【C1】______ to keep【C2】______ of what the people are thinking. An important question is the degree【C3】______ which these po...
【单选题】阅读下面程序 public class Test2______ { public static void main(String[] args){ Thread t=new Test2() t. start() } public void run(){ System. out. priatln('How are you. ') } } 在程序下画线处填入的正确的选项是