您现在位置:模拟考场> 湖北成人高考> 专升本> 大学英语> 浏览试题
[单选题][单选题] It can be inferred from the passage that
  • Athe Apollo mission was very successful
  • Bprotection from space radiation is no easy job
  • Castronauts will have deformed children or grandchildren
  • Dradiation is not a threat to well-protected space explorers
  • 收藏 查看答案