APPd

һ pd

̫ƽ܇W(wng) > ˹C(j) > ˹C(j)ͱB(yng)}

˹C(j)ͱB(yng)}

1 2

Ʒƣ

܇ͣ

ٷr(ji) o(bo)r(ji)

܇ģDƬ

˹x}

ʾ

_

֮ܲ鿴܇ҵĺ܇тĻ؏(f)Ŷ

Ҫᆖ