resistances in the way of $190:
R1=$19-$20
R2=$30
R3=$40
R4=$49
R5=$75
R6=$130
R1=$19-$20
R2=$30
R3=$40
R4=$49
R5=$75
R6=$130
评论:
the main resistance is $40 and could form the handle of the cup between $40 and $20.