31)有以下程序 　　#include 　　main) 　　{ char a[30],b[30]; 　 　scanf"%s",A); 　　 getsB); 　　 printf"%s\n %s\n",a,B); 　　} 　　程序运行时若输入： 　　how are you? I am fine<回车> 　　则输出结果是 　　
(A)how are you?
(B)how 　　 I am fine are you? I am fine 　　
(C)how are you? I am fine
(D)how are you?

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