APPd

һ pd

̫ƽ܇W(wng) > ˹C(j) > ˹1.8C(j)͆}

˹1.8C(j)͆}

˹

Ʒƣ

܇ͣ ˹

ٷr(ji) o(bo)r(ji)

܇ģDƬ

ʾ

_

֮ܲ鿴܇ҵĺ܇тĻ؏(f)Ŷ

Ҫᆖ