打印一份稿件,若每小时打1800个字,12小时可打完,若要9小时打完,每小时需要打多少个字?)@5V3r(L3t3z2y9p
算式:提示2z5?1T)L2l,N5g3G4B7r1},Z,i6F)@5V3r(L3t3z2y9p
答:每小时需要打+a-r0S-N6G+q3n1t'q6j个字。)@5V3r(L3t3z2y9p