ya ... right answer is
! R- E: D* g) va)$60-$55=賺左$5
8 k! d7 f3 Y$ o' H
; S) K( j, V3 a; ob)$60-$62=花多左$2tvb now,tvbnow,bttvb6 q- E; R( e8 o! ^% E
: Y U8 W1 n) |! p4 ]tvb now,tvbnow,bttvbc)$68-$62=賺左$6' W/ v w1 c6 \: A/ `, f
5.39.217.77* ?' v3 {2 m2 D) X& x1 T$ {! d
所以:$5-$2+$6=$9 |