-174
, . .
, , , ( - 20), +100.
, . .
-174 - , .
, .
|
|
|
, , , - |
, % |
66 76 |
246 (4) 4 =(20+5), |
15-20 |
, , |
70 |
=(20 + 2) , 3%- NaCL, , , : |
24 |
3 =(20 + 2) (65+5)%, , |
1 . |
-174 , .
.
. , 021. , . , . 10% .
350 400 /2 .
25, 50
-174 .
-20. .