控制的第三步是（）

A.信息反馈

B.建立标准

C.明确目标

D.衡量绩效

E.纠正偏差

Multipurpose Internet Mail Extension (MIME) is a (1) document messaging standard in the Internet enviroment, with MIME, users can send (2) Email messages that include audio, video, graphices, and text to any other user of a TCP/IP network. Richtext information can also be (3) into messages. It defines the fonts, formats, and (4) features of a document so the document can be easily (5) on many different types of systems.

3（）

A．incorporated

B．filled

C．stored

D．filed