题目

下列能计算Sum= 的Visual Basic程序段是(    ) A . Sum = 1 For i=1 To 49     Sum = Sum+i/(2 * i- 1) Next i B . Sum=0 For i=1 To 99     Sum=i/(2*i-1) Next i C . Sum=0 i=1 Do While i<= 50     Sum = Sum+i/(2*i- 1)     i=i+1 Loop D . Sum=0 i=1 Do While i<= 50     Sum= Sum+i/(2 * i- 1) Loop 答案：C

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