锰氧化物的界面合成及其催化氧化邻二甲苯性能研究.pdf

文档介绍：Roll call should be abandon in the university
ytinrete
survey
Does anyone agree on the roll call on the classes in the university? Please put your
hands up.
the power of the roll call
my friend
roll call
No
yes
take the class
not take the class
what roll call give us
what roll call give us
like to improve the study but it does not
Roll call
Study improved
fallacy
Roll call
Study improved
what roll call give us
loser
College drop out
essful
what roll call give us
the freedom atmosphere of University
freedom
Earth is square
I’ll be a milkman
in the future
excellent
dull
get half the results with double the effort
Roll call
what roll call give us
the students
university
society
responsible
No “roll call” future
exercise
Roll
call
what we will get if we haven’t roll call
what we will get if we haven’t roll call
1. more time available
I may do more exercise to
strengthen my studies
I’m going to save the world
Forget the program
I’ll be a real artist
in the future