解析 【答案】were【核心短语/词汇】computer 电脑【翻译】20年前没有电脑。【解析】根据20 years ago(20年前)可以判断本句应用一般过去时,本句考查there be结构的一般过去时there was(后面的名词是可数名词单数/不可数名词)/were(可数名词复数);因为本句后面的名词computers(电脑)是可数名词
There weren't computers 20 years ago. A. some B. any C. one 相关知识点: 试题来源: 解析 B 【解析】空后 computers 为复数,排除 C项; some 和 any 均可表示“一些",但 some 用于肯 定句和希望得到对方肯定回答的疑问句中,而 any 常用于否定句和疑问句中。
How Blystone began using computers 20 years ago; How students view specimens at a computer workstation; Comments on the benefits of the computers from undergraduates; Description of the `Morph' program showing embryo development; How Blystone is helping other professors develop ways to use computers...
Programmers wanting to avoid the Y2K bug had two broad options: entirely rewrite their code, or adopt a quick fix called “windowing”, which would treat all dates from 00 to 20, as from the 2000s, rather than the 1900s. Anestimated 80 per centof computers fixed in 1999 ...
If I lived 100 years ago, it would be hard to imagine what life would be like with computers. And that makes me wonder: will our lives change again? And what new thing will change them?估计电脑真的改变了人类的生活。如果我100年前生活的话,就很难想象有了电脑的生活。 这也让我很好奇:...
1 You ___ ever saw computers years ago, but now they are everywhere. A. sometimes B. usually C. hardly D. almost 2You ___ ever saw computers years ago, but now they are everywhere.[ ]A. sometimes B. usually C. hardly D. almost 3You ___ ever saw computers years ago, but...
(),We saw computers 20 years ago, but now they are everywhere. A.sometimes B.usuall
Nobody writing about aviation or electricity or cars or rockets today has that kind of privilege, and people writing about the Internet 20 years from now almost certainly won’t either. In Cerf’s case, that privilege has happened reasonably often over the years—including a few extended interv...
particularly with the battery life. Windows laptops have trailed MacBooks in battery life ever since Apple released its Arm-based M1 processor nearly four years ago. The Surface Laptop 7 didn't just close the gap in battery life between a Windows laptop at a MacBook but surpassed it. It ...
These days, desktops are much, much cheaper than they were 20 years, and you can have one for just a few hundred dollars. That's a far cry from the thousands of dollars they cost in the '80s. In fact, one of Hewlett-Packard's first business PCs, the 300, cost $95,000 in 1972...