79? 76???? ?????????????????ԉh???????800????????
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?????? 800
????????????????????????4-6??7-12o?????
?????ԉh???????????????????
????????????????????????????B???????
???????173???5?p36??????????154221??????427?
?yi??????????5??????????????y?????
B? ?????????????300????????57??41?11?????
? ??
??3????????????ԏ??????????
???1-6??????30%40%60%????1???????????????????
?????154?142?92%?691?621?90%????????????B?275????100%?97%??94%?99.6%
??????????????????????3?è1+3????110?????181?????????????????????????38???7????600?
?????? ?????????????????????????????1-5?????14.1%??3.8??????2????51.54?21.6%??8.8?????3???300.16??12.3%??4????256211?????
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