根据题意,20题全部答对得100分,答错一题将失去(5+3)分,而不答仅失去5分。小丽共失去(100-79)分。再根据(100-79)÷8=2(题)……5(分),分析答对、答错和没答的题数。7?6O(O9i:^
算式:提示,])w5Q9C6X5K({,R4U3h*G;m,d:t+p7?6O(O9i:^
答:答对4Y;b*~3h/a3k-~题,答错8n6L+b;g1T/u6R2J(k7x0U题,有+m8_9C5{,Q-N/`7C/I1]2x8{题没答。7?6O(O9i:^