By using MP3, a 600M-byte music CD can be (70) to 50M bytes or less. It can be streamed (downloaded in chunks)so that you can begin listening to the opening bars while the (71) of the file arrives in the background. And, most important, MP3 music files retain good listening (72) that (73) compression schemes lacked. That (74) of features makes accessing and distributing music on the Web practical for the first time.

A．pressed

B．compressed

C．press

D．compress

参加由建设单位组织的设计技术交底会，并由（）会签会议纪要

A.总监理工程师

B.监理工程师

C.参加会议人员

D.监理公司领导