_____________________________________________
___________________________________________
____
_____________________________________________________________
(, )
_________________________________,_________________
_____._________.
4
1. . (/)?
2. ᒺ . ?
3. 䳿 , . , ?
4. , 1 , 0,2.
5.ϳ 30 20 2 . .
ֲ Ͳ Ͳ