单选题 The British political system has evolved over several centuries.
  • A. improved
  • B. developed
  • C. involved
  • D. survived


【正确答案】 B
【答案解析】本题要求选出evolve的同义词，比较四个选项的意思A．improved“提高”；B，developed“发展”；C．involved“涉及”；D．survived“生存”，可看出正确答案为B。