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单选题
class TestMain {   static int x = 2;   static { x = 4; }   static public void main(String[] args) {   int y = x + 1;   System.out.println(y);  }  }   和命令行:   java TestMain   结果为:()
A

 3

B

 5

C

 编译失败

D

 运行时异常被抛出


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