Thank you for your effort.<br /><br />I used Latex to write the document, and tranformed it into docx as required. This may be the reason for the terrible format problem.<br /><br />I revised my paper according to your notes, and attached is the PDF version.<br /><br />Please check that for me if possible, and I will appreciate your further suggestions on the writing sample.<br /><br />Thanks again !<br /><br />