2018年下半年网络工程师考试上午真题答案 1-5 DCABA 6-10 CDCDB 11-15 CCBBD 16-20 ADDDC 21-25 ADBCB 26-30 ABCBC 31-35 ADADD 36-40 ADCCC 41-45 BBDBB 46-50 CDBAC 51-55 BDDAB 56-60 CBABD 61-65 AACAA 66-70 CBABA 71-75 BACDA