入境美國通關與申報流程攻略

這篇文章很詳盡地說明了一些關於入境美國的小常識 希望可以幫助第一次來到美國的朋友,在入境的時候可以放鬆心情 順利展開在美國的旅程 入境美國通關與申報流程攻略   Advertisements

Some useful references for LaTeX users

Some useful references are collected in this post and this would be kept updated if necessary.   List of  mathematical symbols Detexify–A handwritten symbol recognition:  you draw it and they recognize what it is templates for optimization models table generator: one of my favorite online service helps you rapidly generate your table and realize the…

A4 or US letter?

I believe that I am not the only one person who always submits the manuscript for conferences in the last minute.

How far is from XXX to OOO?

I have lived in great Washington D.C. area for years, but the most frequently asked questions between me and friends is: