The major problem with E-mail is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day. In addition, mail boxes require some management to (74) messages or archive those that might be required later. Senders don’t always know about your E-mail backlog and often send (75) messages.

A．manage

B．save

C．backup

D．dispose of

近代西方印刷技术的传入，对我国图书形态产生了很大的影响，具体表现有（ ）等。

A．铅印、石印技术传入后，出版物上的字体变小但仍十分清晰

B．图书可以双面印刷，并出现平装、精装的样式

C．民国时期的图书装帧已完全与世界潮流合拍，传统的线装样式从此退出历史舞台

D．书的形态因为文字的横排由左翻本变成右翻本

E．毛边书日趋向切边书转化