A.more than 40 | B.less than 30 |
C.more than 60 | D.more than 50 |
A.make the computer cheaper | B.use the computer widely |
C.make the computer go well | D.develop new software |
A.In the 1960s. | B.In the 1970s. |
C.In the 1980s. | D.In the 1990s. |
A.still worked | B.stopped to work |
C.stopped working. | D.began to work |
A.How to Surf the Internet |
B.How to Use the Internet |
C.When was the Internet set up |
D.The History of the Internet |