Computers are not so expensive as they ____to be.A.useB.used C.are used D.were used

相关推荐

• Computers are not so expensive as they ____to be.A.useB.used C.are used D.were used
• 帮忙做一道英语判断题We are aill busy talking about and using the Internet,but how many of us know the history of the Internet?Many people are surprised when they find the Internet was set up in the 1960s.At that time,computers were large and expensive.Computer networks didn’t work well .If one computer in the network broke down,then the whole network stopped .so a new network system had to be set up.It should be good enough to be used by many different computer
• 数学笔记.
• 设0小于a小于b小于1,则下列不等式成立的是（） A.a∧b大于1 B.lg（b-a）小于