题目内容
Chinais far from alone in wanting to knot cities together.
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Itis the clusters that have coalesced naturally, especially the deltas of thePearl and Yangzi rivers, that have the brightest prospects.
That,in turn, has crimped the growth of China’s cities, which would otherwise beeven bigger.
目前,最先进的纳米监听技术,就是在昆虫身上不仅安装了()设备,而且在昆虫体内安装芯片,能够控制昆虫飞行的路线。
纳米机器人比起过去微型的机器人,不仅仅体积缩小几十倍,而且智能化程度非常高。
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