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

分类: 作业答案 • 2021-12-20 01:07:02

问题描述：

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

答

A.a
plan是可数名词，而且后面是is，is当然接单数

答

a
plan是可数名词

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,...