✔ 最佳答案
For sales, you should highlight your strength on the Selling techniques.
For example, you should say you are good at communication skill. If you worked in this field before, you should give your track record like you are the best sales in 2008 Q1 and so on. If you do not have working experiences, you also have to give an example to prove you are good at communcation skill. Among your friends, you are the mediator. During the conflict, you like to spend time to understand the people and to persuade them to accept the best way to solve the problem. Of course, you can say a real case.
For weakness, you should also get this chance to show your selling skill. You can say you like you are people oriented people, so you may not work quiet and alone. That's why sales is the dream job, it can meet different kind of people and you have confidence to sell them.
Hope the answer inspire you.