http://img1.ph.126.net/6kgiXiSTsqwHQ6f8qCZ2lg==/976155219250297228.png
估计积分值为( ).http://img0.ph.126.net/MJVjR_pi5EfF8PJpI6Y3gg==/2434477073588203176.gif
http://img0.ph.126.net/fJT0JZPPggdU88BYehGlQA==/664280945054456724.gif
美元标价法,一般定义为:
http://img0.ph.126.net/PYMPdsvRpHZjFSV70YoFLg==/1047649863334547205.gif