A．The refrigerator door.
B．The refrigerator plate.
C．The refrigerator shelves.
D．The refrigerator engine.

A．A phenomenon of aging face because of facing the computer for a long time.
B．A feature of screen-shaped face because of people's following fashion on the Internet.
C．A symptom of "turkey neck" because of people's imitating the turkey.
D．A representation of wrinkles because of people's lifting their heads for long hours.

A．It can warn office workers not to frown at work.
B．It can reduce the harm of facing the computer.
C．It can make office ladles' expressions lovelier.
D．It can absorb the computer's radiation.