原式=(-6)×(-72)-4×72+2×(-72)
=21-14-7
=0.
故答案为:0.
以下4个程序中,完全正确的是【 】。
A.#include main(); {/*programming*/printf("programming!\n");}
B.#include main(){/*/programming/*/ printf("programming!\n");}
C.#include main() {/*/*programming*/*/ printf("programming!\n");}
D.include main(){/*programming*/printf("programming!\n");}
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