??

1.???????????????????

2.????3?????3????????????????????????

3.??

a.?????????0.252?????12(?????????)

b.????????????????????????????????????????

4.?

a.????1030??4???

b.??????460.1???0.5?0.5??????0.5?0.25?0.5?(0.5)o??

c.??????15?0.30.5??B(2)0.250.5?0.5??

d.????????????????1?1??????????1???????????????

e.?0.1???(25000)0.1?0.5?0.5???

5.?:

a. ????????????????

b.????(Buller)??????????????????????

6.:

a. ????????

b.?????????????????????A???????

7.??: ?????????

????...