团长，还可以换吗？有买二送二的，我的鱼油买四瓶吧，买两瓶送两瓶：）

1. GNC Triple Strength Fish Oil + Vitamin D-3
60 softgels
885311
Price: $28.99
Member Price: $26.09
Qty：4瓶 （买二送二）
http://www.gnc.com/product/index.jsp?productId=4190914

2. GNC Fish Oil 1000
360 Softgel Capsules
Qty: 1瓶
Regular Price: $17.99
Sale Price: $14.99
Member Price: $12.74
http://www.gnc.com/product/index.jsp?productId=3943828&cp=3593185.12961314

3. GNC Calcium Plus 1000 with Magnesium & Vitamin D
180 Caplets
Qty: 1瓶
Price: $12.99
Member Price: $10.39
http://www.gnc.com/product/index.jsp?productId=2779385&cp=3593185.12961320.13311981