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  3. These results must be accurate, because all the calculations have been done by an ______ computer.

These results must be accurate, because all the calculations have been done by an ______ computer.

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问题 These results must be accurate, because all the calculations have been done by an ______ computer.
选项 A、electric
B、electronic
C、electrical
D、electricity
答案B
解析 electric：带电的，其修饰的物体本身可带电；electronic：电子的，和电子有关的，electronic computer为固定搭配，意为“电子计算机”；electricity：电力，电流；electrical：与电学有关的，其修饰的词本身并不带电。根据句意和搭配可知，选B。
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