单选题 Job fairs are usually very lively and informal, and you can roam ______, surveying what is on offer and gathering literature on jobs you might not have considered in the everyday run of things.
  • A. at peace
  • B. at leisure
  • C. at rest
  • D. at speed
【正确答案】 B
【答案解析】[解析] at peace和平；at leisure从容地；at rest静止，长眠；at speed飞快地。答案是B。