protruding ear造句

• Fxs is characterized by x - linked mental retardation with additional features such as a long face with large protruding ears , macroorchidism , and eye - gaze avoidance etc . fxs is associated with a fragile site , designated fraxa ( fragile site , x chromosome , a site ) , at xq27 . 3 near the end of the long arm
  其主要临床特征为智力低下、特殊的外貌特征(包括长脸、大耳廓、下颌突出、巨头、腭弓高、大睾丸等) 、行为及认知障碍、多动、注意力难集中以及孤独、自闭等症状。