ya ... right answer is tvb now,tvbnow,bttvb. u+ A% q3 U% p' A1 h4 n0 x; u, P
a)$60-$55=賺左$5
+ _5 {) r$ K2 I- \+ ktvb now,tvbnow,bttvb2 b; Y H) K" X7 V, S) a7 }
b)$60-$62=花多左$25.39.217.77:8898- ~6 t1 R. u3 o. b; d' f& A6 u
& E, H, p! v+ N! h
c)$68-$62=賺左$6' [4 z7 X7 E0 U! i+ S3 T
9 `% V# _: \ r/ C9 f所以:$5-$2+$6=$9 |