At 8:33 a. m. on 【小题1】  12th, 2019, a helicopter landed in the parking place of Changchun Children's Hospital. Several doctors and nurses rushed out of the hospital and got on it at once. With the help of the helicopter, they could 【小题2】  a lot of time to reach the first-aid scene(急救现场).

The helicopter is called "120 in the air". It can be used:

* to carry doctors and nurses to the first-aid scene as 【小题3】  as possible.

* to bring first aid to the place an ambulance(救护车) can't reach

* to take a patient from one hospital to 【小题4】  hospital if necessary.

Time is life. This event has started a new way of first aid that will help.