为满足旅客的尊贵体验需求，可以从哪些方面努力？①以客为尊的服务理念②特别关注③热情招待④了解个性化需求

A．“Aspirin prevents the recurrence of venous thromboembolism”
B．“Aspirin and venous thromboembolism”
C．“Effect of aspirin on the recurrence of venous thromboembolism”