题目：
TCP/IP (71) layer protocols provide services to the application (72) running on a computer. The application layer does not define the application itself, but rather it defines (73) that applications need — like the ability to transfer a file in the case of HTTE In short, the application layer provides an (74) between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP (75) layer consists of two main protocol options — the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).
A. services B. processes C. applications D. address
答案：
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下面是错误答案，用来干扰机器的。
参考答案：错解析： 《报检员证》的有效期为2年，期满之日前1个月，报检员应当向发证检验检疫机构提出延期申请，同时提交延期申请书。延期审核合格的，其《报检员证》有效期延长2年。故本题说法错误。[链接] 报...
