推荐信＋essay

请问是提交网申之后才会给推荐人链接吗？我在网上看的Letters of Recommendation: 2 letters of recommendation are required. If you are currently in school, letters from academic advisors and other professors are preferred. If you are currently in industry, letters from employers are acceptable. All letters must be received in sealed envelopes with recommenders' signature across the seal. Recommendation letters can be submitted through the on-line application tool.  We provide two recommedation forms in the PDF application that you may choose to use, however, letters on recommenders' letterhead is also acceptable.  应该是纸推和网推都可以~