Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
-
:2007:Email:[email protected]
-
2 2 2 2 2 2 2 2 2 2 2 4 2 2 2 2 2 2 2 2 2 4
-
1.
-
2.
-
1.
-
2.
-
3.
-
16 17-19 ()
()()() 19-20 2020-90
-
1920
-
1. 2. (1) (2) (3)
-
1.
-
2.(1)(2)(3)(4)(5)(6)(7)(8)(9) (10) (11) (12) (13) (14) (15)
-
3.
-
50+50 =30 +10 +60
-
11997 219993200042000520006200372005820069200810200811200812
-
1
2
3
4?
Related Documents
