单项选择题

main() {int a=2,b=7,c=5; switch(a＞0) {case 1:switch(b＜0) {case 1:switch(“@”); break; Case 2: printf(“!”); break; } case 0: switch(c==5){ case 0: printf(“*”); break; case 1: printf(“#”); break; case 2: printf(“ D. ＃$&

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