单项选择题 A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.

单项选择题 A compound fracture is a fracture in which（）.

单项选择题 Which should NOT be a treatment for a person who has received a head injury and is groggy or unconscious?（）