1. Generally, you have to print several transcripts and degree certificates when applying to several schools. It is generally recommended to print more transcripts (for future use, you should go to school to save them), which need to be stamped by the department and put in the envelope of the school. You should also stamp the department seal at the seal (you are reading the department seal and graduating from the archives). Schools usually have their own envelopes. The recommendation letter depends on the school you apply for. Generally, each school requires three different teachers to write a letter. At the end of the letter, the teacher should sign the Chinese name and put it in three envelopes. When stamping, corresponding signatures should be written respectively. (The paper with the name of the school is used, but it is usually the content of the letter signed by the teacher and written by the intermediary. )
2. American transcripts and letters of recommendation must be original.
3. The United States now basically applies online. After the online application is completed, transcripts, letters of recommendation, resumes and self-reports, propositional articles, works, papers, honorary certificates and other materials still need to be mailed. According to the list on the school "list", you can sum up what materials to mail. Generally, some graduate students will be mailed to the graduate school and some will be mailed to the department. The recommendation letter is signed by the teacher, and the teacher's name is recommended, one at the end of the letter and the other at the seal of the envelope.
You can send points, but you need to write an email to discuss with the school contact before sending them.