A、public class test { public int x=0; public test(int x) { this.x=x; } }
B、public class Test { public int x=0; public Test(int x) { this.x=x; } }
C、public class Test extends Ti,T2 { public int x=0; public Test(int x) { this.x=x; } }
D、protected class Test extends T2 { public int x=0; public Test(int x) { this.x=x; } }
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