A radio medical advice service（）ships of all nationalities and no charge is made for this service.

A.Apply a tourniquet to prevent the bleeding from restarting
B.Apply a pressure bandage over the dressing
C.Remove any small foreign matter and apply antiseptic
D.Administer fluids to assist the body in replacing the lost blood.

A.moved to a cool room and told to lie down
B.kept standing and encouraged to walk slowly and continuously
C.given a glass of water and told to return to work after 15 minutes of rest
D.None of the above are correct

A.On their side if unconscious
B.Head down and feet up，no injuries to face or head
C.Flat on their back with head and feet at the same level
D.Arms above their head