题目内容

Colleges around the world their computer systems for the past decade, in large part to provide students with the most advanced free system.

A. has been replacing
B. have replacing
C. have been replacing
D. arereplacing

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Professors have been encouraged totheir lectures andthem online.

A. recording post
B. wireemail
C. tapepost
D. text instant-massage

Welcome to college life in the 21st century, where students on campus are electronically linked to each other, to professors and to their classwork 24/7 in an river of information and communication.

A. non-stop
B. ever-flowing
C. always-connected
D. anywhere-anytime

Some say the focus on technologystudents a wired world.

A. preparesfor
B. prepare for
C. prepares to
D. preparewith

People are beginning to realize that to natrure at will is the biggest mistake that man has ever made.

A. compensate
B. adopt
C. estimate
D. transform