Your grade?
freshman
sophomore
junior
senior
What do you usually use mobile phone for?
for studying
for amusement
for social contact
for look at the time
others
Do you think mobile phone is indispensable ？
yes
no
does not to matter
How many hours do you use mobile phone everyday?
1~2hours
3~4hours
5~8hours
When do you usually use mobile phone ?
at the class
when eating
while walking
on the buses
before sleeping
Which do you think mobile phone brings to you more?
When did you own your first mobile phone?
primary school
junior high school
Senior High School
college