()
()
: ________________________________.
: (, )
: ()
201__ .
2
2 ()
充.3
1. ...6
1.1..6
1.210
1.314
2. ..17
2.1.17
2.2.20
2.3.34
3. ..49
3.1.49
3.2.55
3.3.60
充64
.................................68
3
. 1. ,
4
1
| . | ||
| , . 2% | , . . | |
| , | , . , , , . | |
| . . | ||
| , . . | , , . | |
| . . | , . | |
| . . | , ( , , ). |
|
|
|
4
( ), :
∆bC = (b1 b0) 
1 = ∆b × m1 (1)
∆bC - , ,
∆bC <0, , ∆bC > 0;
b0 ;
b1 ;
1 .
