2011ִҵҩʦҩѧרҵϰժҪʮһ(1)
Դ 2011818
: ҩʦҩѧרҵϰժҪʮһ(1)ͽҡ
塢ҵ
1.ҵ
(1)ⶨùѧ
(2)
1)ҩл(ע)
2)ҩоע()
2.ⶨýȡ
3.ҩ|ĩҽҩ
ҩ =(ҩ/)100%
ҩ =[(ҩ/ҩ+ҩ)]100%
4.ҩͷٶȣݼҪйҩа
Ƽ
رƼ
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