A.that it can hear the owner’s voic
B.that it can remember a passwor
C.that it can identify the owner’s voic
D.that it can remember the owner's PI
A.switc
B.batter
C.speake
D.built-in chi



A.Internet based courses may be less costly than traditional one
B.Teachers in traditional institutions may lose their job
C.Internet-based courseware may lack variety in course conten
D.The Internet University may produce teachers with a lot of publicit