在开车过程中，投用冷却器时，引循环水的速度是（）。

A、越快越好

B、先快后慢

C、越慢越好

D、先慢后快

Basic emergency care for third degree electrical burn is to（）.

A.flood the burned area with warm water for two minutes

B.brush away the charred skin and wrap the burned area

C.cover the burned area with a clean cloth and transport the patient to a medical facility

D.apply ointment or spray to the burned area and wrap with a clean cloth