近年来，随着经济的发展可能带来的健康问题有（）

A.营养不良、心理障碍、精神分裂症

B.传染病、车祸、心理紧张

C.慢性非传染性疾病、心理紧张、环境污染

D.环境污染、婴儿死亡率增高、人口寿命降低

E.新型传染病、心理紧张、贫血

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.

2（）

A．analog

B．many

C．multimedia

D．digital