为了加强与哈萨克斯坦合作，2002年12月4日，莫斯科市长卢日科夫建议俄罗斯联邦政府重新启动“北水南调”工程；修建一条大运河，将俄罗斯的鄂毕河河水南引，直抵中亚的阿姆河与锡尔河，与之共同汇入咸海。读图，回答下列问题：

（2015•广东佛山）

 A 13-year-old American has made a cheap machine that can help blind people read.

 The blind can read by using Braille – a system of small bumps (隆起物) that the blind touch to read the letters. The machine that makes these small bumps usually costs at least $2,000. It is called Braille writer. The American schoolboy, Shubham Banerjee, made a new Braille writer from a Lego tool that lets people create robots. Banerjee has called his new machine the Braigo – a combination (组合) of the words  Braille and Lego. It costs just $ 350. It works by changing electronic text into Braille and then printing it using a computer or mobile machine.

 Banerjee designed (设计) his Braigo last year for a school science exhibition. Since then, he has caught the interest of Silicon Valley in the USA. The big technology company Intel spent money on Banerjee's machine last November, but they did not say how much money they put in. Banerjee also got $35, 000 from his father to help him start the project. His father works as a computer engineer (工程师) at Intel.  He spoke about why he gave so much money to his son, saying:”We as parents started to be interested more, thinking that he's on to something and this invention has to continue.”Banerjee told the AP News: “My dream would probably be having most of the blind people…using my Braigo.”

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雾渐渐消散，重叠的山峦一层一层地（    ）。