Technical adivce should be sought before any such____plan is put _英语解答

Technical adivce should be sought before any such____plan is put into practice.[A.a B./]
并说明原因谢谢

人气：264 ℃　时间：2020-05-17 19:51:35

解答

选B按照限定词与限定词之间不同搭配位置,限定词可分为中位限定词（CENTRAL DETERMINER〕、前位限定词（PREDETERMINER〕和后位限定词（POSTDETERMINER〕.a) 中位限定词包括a(n),the,zero; this,that,these,those; my,...