$B99?7FbMF(B$B!!(B2$B7n%+%l%s%@!"%G%9%/%H%C%W!"%+%C%H(B7 $B!!(B






































$B$*5$$KF~$j$KDI2C(B

$B2;3Z$NIt20$5$^$h$j(B

$B2;3ZAG:`$NIt20$G$9(B

$BAG:`$rC5$9%Z!<%8$G$9(B

$BAG:`$rC5$9%Z!<%8$G$9(B

$B#Y#B$5$s$,:n$C$F$/$l$^$7$?(B

$B;R6!I~$H?)4a$,$$$C$Q$$(B

$BAG:`$rC5$9%Z!<%8$G$9(B
$B?M5$AG:`%i%s%-%s%0(B

SICNE 2000.12