单选题 Around the Spring Festival, a {{U}}prevailing{{/U}} practice is to exchange greetings and visits.
  • A. prevalent
  • B. populous
  • C. preceding
  • D. present
【正确答案】 A
【答案解析】prevailing:占上风的,十分流行的;prevalent:流行的,主要的;populous:人口多的;preceding:上一个,前面的;present:当前的,现在的