PMI randomly selects a percentage of applicants for audit, as detailed in the application process and the PMI Certification Handbooks. Your application has been selected to participate in the application audit. In reviewing your application during the audit process, several questions came up regarding your project management experience and the projects that you have provided.

A deliverable is defined as "Any unique and verifiable product, result, or capability to perform a service that must be produced to complete a process, phase, or project." A project is defined as "A temporary endeavor undertaken to create a unique product, service or result."

It is necessary to provide additional information regarding your submitted projects to PMI in order for your application to meet the requirements of the audit process. Specifically, please provide a more complete description of the projects listed on your application and your deliverables for the projects listed in your application.

Please reply to this e-mail with the relevant project descriptions, listed individually, and I will then review and send your audit forms to you via e-mail.

Thank you and please let me know if you have any additional questions or concerns.

现在，我要怎么做？？
是把我的项目经历表用信封邮寄到美国吗？？
有没有人知道的，告诉我一下。因为下个月就是考试时间了，而我又是头一回遇到这事。
这事很急，我先拜谢了。

看这句话的意思，你应该给他们回复一封EMAIL，把你的项目管理经验部分进行说明。