问题详情

Multipurpose Internet Mail Extension (MIME)is a(76)document messaging standard in the Internet environment. With MIME, users can send(77)E-mail messages that include audio, video, graphices, and text to any other user of a TCP/IP network. Richtext information can also be(78)into messages. It defines the fonts, formats, and(79)features of a document so the document can be easily(80)on many different types of systems.
A．complete
B．compound
C．simple
D．efficient请帮忙给出正确答案和分析，谢谢！