我国饮用水水质卫生标准规定，饮用水中混浊度不得超过（)。A．5度B．3度C．2度D．1度

Multipurpose Internet Mail Extension(MIME)is a(71)document messaging standard in the Internet enviroment, with MIME, users can send(72)Email messages that include audio, video, graphices, and text to any other user of a TCP/IP network. Richtext information can also be(73)into messages. It defines the fonts, formats, and(74)features of a document so the document can be easily(75)on many different types of systems.

A．complete

B．compound

C．simple

D．efficient

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

Multipurpose Internet Mail Extension (MIME) is a (71) document messaging standard in theInternet enviroment.With MIME，users can send (72) Email messages that include audio，video，graphices，and text to any other user of TC/IP network.Richtext information can also be (73) into messages.It defines the fonts，formats，and (74) features of a document sothe document can be easily (75) on many different types of systems.

(75)

A．complete

B．compound

C．simple

D．efficient

Multipurpose Internet MaiI Extension (MIME) is a(71)document messaging standard in the Internet enviroment, with MIME, users can send(72)E-mail messages that include audio, video, graphices, and text to any other user of a TCP/IP network. Richtext information can also be(73)into messages. It defines the fonts, formats, and(74)features of a document so the document can be easily(75)on many different types of systems.

A．complete

B．compound

C．simple

D．efficient

PGP的英文全称是

A. Pertty Good Privacy

B. Transport Layer Security

C. HyperText Transfer Protocol

D. Multipurpose Internet Mail Extensions

A．protocol list

B． MIME

C． block list

D． extension