Current location - Education and Training Encyclopedia - University ranking - How to solve the problem of power failure in university dormitory at night (using batteries? )
How to solve the problem of power failure in university dormitory at night (using batteries? )
Should I charge my mobile phone or bring two fast batteries, one for noon and one for backup?

The desk lamp can use a small diode lamp with a telephone interface, which is quite bright. It costs about 7 yuan.

There is no way to stereo at present. The best way is to use the player with an external player. ..

There was a power outage in our corridor, but there was no connection in the corridor, only next to the water dispenser, where everyone went to rinse pots. ..