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  3. At first, the new lightweight drill has been invented to Dr. Yoseph Bar-Cohen seems to suggest that

At first, the new lightweight drill has been invented to Dr. Yoseph Bar-Cohen seems to suggest that

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问题 At first, the new lightweight drill has been invented to
Dr. Yoseph Bar-Cohen seems to suggest that
选项 A、the new drill is a perfect device without any defect.
B、it is good for the new drill to be energy-saving.
C、the technological advancement allows us to invent new devices with marked features.
D、with the further development of technology, the new drill can be made smaller and lighter.
答案C
解析 推理判断题。文章最后一段指出"多亏了与这个新型钻孔机相关的科技发展，新装置才可以做得体积很小，重量很轻，这样可以使能量消耗很少，但可靠度却很高"。由此可以推知，科技的发展让我们能够生产出具有突出特点的新装置。
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