As for my strongest strength, I think it is my carefulness and responsibility in work and study, which promote me unceasingly devote myself to my work.(定位) A case in point is that during a bid for a road project, we spent 10 days preparing for the job and everyone was very tired. It was already four o'clock AM. And they all planned to have a rest, but I insisted on a final confirmation of the tender. When doing that, suddenly I found that they had written the numbers oppositely. But when I told them about the mistake, they thought that I was young without any experience,and they could not have made mistakes. To persuade them,I had to take out the original documents. By comparing the two documents, finally they believed that it was a mistake. And we corrected it together. At last, we succeeded.(举例) Through this matter, I find that carefulness and responsibility are very important. And I also stick to them in the following work.(积极影响) I think this is my greatest strength.(总结)