题目内容（请给出正确答案）

[主观题]

Computers are thought of a great technological improvement that saves people much time and

energy.

A．我们考虑到计算机是一个伟大的技术改进，它既节省了人们的时间又让人们充满活力。

B．计算机节省了人们大量的时间和精力，所以被认为是一项伟大的技术进步。

C．人们认为计算机是一项伟大的技术进步，它既节省了时间又让人们充满活力。

D．计算机既使人们节省了时间同时又减轻了负担，因此被认为是一项伟大的技术进步。

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