ģ尲װõƴķϸģʩӣģ尲װʱҪ£
(1) ģģӴö͸ģǶ
(2) ֧ģߡλҪ׼ȷ֧Ӧι̡ģ֧Ӧ塣
(3) ģҪˮɰϣֹܽ
(4) ģĽںɨڣģʱӦһ

