回复：你可以把所有的问题开在一个帖子底下，这样较方便。

Thank God!

Today is my first day in wenxuecity, and you're my first net friend here! I don't go online often, that's why I had to learn how to speak online. sorry for my ignorance.

Your answers surprised me a lot! To me, you really are the expert. I didn't take FEA course at the university. Right now there are some companies require these skills. I feel a little regret that I didn't take the course at college's time.

I was so shocked by the effiency of the net! You're the one.

Thanks and I will ask you more questions.