we know that the first computer____by Charles Babbage.A.was

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we know that the first computer____by Charles Babbage.A.was invented B.is invented
为什么选A.这不是一个客观事实嘛

首先你要区分客观事实和过去时的区别!
你可以这样来理客观事实相当于是太阳从东边升起这类,有点像是一直都在持续这样反复循环发生的客观事件!而发明电脑则不会是像太阳从东边升起这样!
这一句子中主要表述的是Charles Babbage 这人发明了电脑这一事,注意,重点是“发明了”的“了”字,而这一动作是在我们现在之前就发生了,所以肯定会过去式,并且发明电脑这一事件中电脑是被发明的,所以肯定为被动语态,这样组合起来就是 A.was invented 了!
不知道我这样说你能不能理解?
希望能够帮到你!

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