收到了使馆的回信。内容如下
As you are residing outside China, we will have to send you medical examination forms by mail. Note that mailing address that we have on file is a Chinese address while USA residential address that you have provided on this email is different from the one we have on file.
You are advised to provide the documents listed below either by regular mail or fax ((86-10) 5139-4449). This is to ensure the consistency of information on your application form regarding your mailing address.
Please understand that we cannot confirm receipt of every fax/mail received. When you send a fax to our office make sure that the machine you are using has an option confirmation report "on". Please do not request confirmation of fax receipt.
Please specify which mailing address should we send medical examination forms to.