SUNDAY~~

aaaaaaa~~~~very sienz aaa~~~~
left laz two dayas already~~then no nid exam jor~~~aaaaa
no mood to study zen me ban??
arghhhhhhhh~~~~~~~~~~~~~~~~~~~~
yerrr~~~~~~~~~~~~~~~
very sienz==!!!!
i9 want study geo...bt no bring the book~~~!!
okok~~~~
moral...i come again...
science..okok...i gayao again...brass...70%copper+30%zinc~~
bronze~~88%copper+12%tin~~
i found tat many alloy use copper~~
duralumin~~aluminium+copper~do aircraft~~strong n light~
pewter~~tin,copper,antimony~~(use many tin xia)
steel~~IC(Iron+Carbon) very hard~~~
stainless steel~~cooking utensil~~gate~~~
Haber process~~do out ammonia~~
450ATM 200 KElvin,hydrogen~
carbon dioxide cause greenhouse effect
preservatiobn,conservation~~
~~~
i think do bookkeep will better~cuz can spent the time quickly n veryconcentrate on it^^
ohyeah~~~
boring aa~~sienz~~~
hope can get good result~~
all of u also try yr best ya~~get flying colour in yr examination:)
GAYAOOOOOOOO!!!!!GAMBATEHHHHHHHHH!!!!!!!