问什么我看到的是65k,没有$50,而且我点下面细节,就说 Earn up to 60,000 Bonus Award Miles: 50,000 Bonus Miles: With this bonus offer you will qualify and receive 50,000 bonus miles after your first use of the card. First use includes using your account for purchases or balance transfers, or using any checks that access your account ; cash advances are not included. 5,000 Bonus Miles: With this bonus offer you will qualify and receive 5,000 bonus miles after your first use of the card and addition of an authorized user to your account; both must occur during the first 2 months from account opening. First use includes using your account for purchases or balance transfers, or using any checks that access your account; cash advances are not included.