??? 0.06% ??? ??, ?? 34? ?? ??
???? ??? ??…?? ?? 0.04%→0.03%
??1
??? ?? ?? ??? ??? ???? ???? ?? ????? ???? ????.
21? ??????? ??? 11? ???(18? ??) ????? ??????? ??? ??? ?? ??? ????? ?? ?? 0.01% ??? ??? ????.
?? ????? ?? ??? ? 5? ??? ?? 27? ???.
???? 2? ?? ???? ???? 0.01%? ????. ??? 0.04% ???? 34? ?? ??????, ??(0.00%)? ???? ????.
?? ????? ???? ???? 0.06%? ???? ????.
?????? △???(0.15%) △???·???(0.11%) △???(0.10%) △???(0.09%) △????(0.08%) △???·??(0.07%) ?? ?? ???.
???? ???? “???, ?????? ? ?? ??? ???? ???? ????? ????, ? ? ??? ????? ?? ??? ??? ?? ??? ???? ? ???? ??? ?? ??? ???? ????”? ???.
???? ???? ???? ????.
?? ?? ???(0.04%) ?? 0.01%???(p) ??? 0.03%? ????.
??? ??? ?? ?? ?? ???? ???? 0.05%? ????, ??? 0.04%? ???? ????.
???(0.15%)? ???·???(0.11%) ?? ????, ??? ??? ??? ???????? ??? ???? ???? 0.05%, 0.02% ???. ???? 0.01% ??? ??????.
??? 0.00% ??? ???? ????.
(??=??1)
[??★???] ??????? ?? ‘???’???!
??? ??? ??? ??
