, 270800 ,
10 ,
22
10 : , .
, ,
2-3. word
3. . - : Zn (II) , Al (III) , Sn (II, IV), As (III, V), Cr (III), Sb (III, V), Bi (III), Mn (II), Fe (II, III), g(II)
:
( 3). -
7 :
4 - (FOR)
1
17
. . 1. . f(x)
10 1505 -
8