【问题】 More poles are needed to ______ the weight of the tent.(2分)AretainBsustainCmaintainDobtain

More poles are needed to ______ the weight of the tent.(2分)AretainBsustainCmaintainDobtain

正确答案:正确答案B

题目解析:本题出自西北农林科技大学,西北农林科技大学大学英语Ⅲ,由丰阳塔题库搜集整理。