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【单选题】
已知结构 Resource 的定义如下: struct Resource{ public int Data; } 则下列语句的运行结果为 ( ) 。 Resource[] list= new Resource[20]; for(int i = 0;i<20;i++){ System.Console.WriteLine(“data={0}”,list[i].Data); }A.
打印 20 行，每行输出都是 data=0
B.
打印 20 行，每行输出都是 data=null
C.
打印 20 行 . 第 1 行输出 data=0 ，第 2 行输出 data=2 ， . ，第 20 行输出 data=19
D.
出现运行时异常
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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E.
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F.
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