单选题 When Columbus reached the New World, corn was the ______ in the America.
  • A. widely most grown plant
  • B. most widely grown plant
  • C. most grown widely plant
  • D. plant widely grown most
【正确答案】 B
【答案解析】句意：当哥伦布到达新大陆的时候，玉米是美洲生长最为广泛的植物。