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【单选题】
以下运行时,如果从键盘输入 1298 再回车,则输出结果为 int n1, n2; scanf("%d", &n2); while (n2 != 0) { n1 = n2 % 10; n2 = n2 / 10; printf("%d", n1); }A.
8921
B.
1298
C.
1
D.
9
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