单选题 The temporary workers will be hired to trim trees and other vegetation that ______ the view of traffic control devices.
  • A. adjust
  • B. obstruct
  • C. simplify
  • D. intensify
【正确答案】 B
【答案解析】[解析] 词汇:动词 1.这是一道选项均为动词的词汇题。 2.原文意思是“阻挡交通控制设备的视野”,因此B obstruct为正确选项。