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【单选题】
请阅读下面程序 public class ThreadTest{ public static void main(String args[]) ( Thread t1=new Thread(new Hello()) Thread t2=new Thread(new Hello()) t1.start() t2.start() } } class Hello implements Runnable { int i public void run() { while(true) { System.out.prinfin('Hello'+i++) if(i=5) break } } } 该程序创建线程使用的方法是A.
继承Thread类
B.
实现Runnable接口
C.
t1.start()
D.
t2.start()
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皮皮学刷刷变学霸
举一反三
【单选题】They have opportunities to learn from professors they()would not be able to access.
A.
therefore
B.
or
C.
otherwise
【单选题】Many engineering professors may not have time to prepare material for class discussion on professional ethics.
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】某放大器想要增大输入电阻,则应该引入( )负反馈;某放大器想要减小输入电阻,则应该引入( )负反馈;
【简答题】放大电路中若要提高电路的输入电阻,应该引入_____负反馈;若要减少输入电阻应该引入____负反馈;若要增大输出电阻,应该引入___负反馈。
【单选题】Several engineering professors have quit from teaching to protest against the creation of a new course in engineering ethics.
A.
Right
B.
Wrong
C.
Not mentioned