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Many teachers believe that hands-on experience is the 【小题1】(good) way to learn. A group of students in the United States are putting that belief to the test. They 【小题2】 (success) designed and built a robot for discovering unexplored mines 【小题3】 the bottom of the sea. Students made the robot 【小题4】(answer) a challenge from the U.S. Department of Defense.

The students recently tested the underwater vehicle 【小题5】(call) PerseusⅡin a 95-meter-long tank of water at the Stevens Institute of Technology.

The robot costs about $15,000 to build. The students use a video game control to direct 【小题6】(it) movements in the tank. What’s more, devices known as Japters 【小题7】 (able) the robot to go up, down and toward its target in the water. Video cameras on the robot send images back to a computer through a 13-meter-long cable. PerseusⅡ, 【小题8】the students worked up to 20 hours a week to design and build, also has 【小题9】 set of lasers (激光), which are used to measure the size of an object.

DeLorme supervised the project from 【小题10】(begin) to end. He says the specialized requirements of robots were demanding.

17-18高二上·浙江宁波·期中
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China has once again proved its 【小题1】 (able) to change the world with the “new four great inventions”: high-speed railways, electronic payments, shared bicycles and online shopping. They’re related to China’s high-tech innovation (创新), 【小题2】 has improved the quality of people’s lives, according to a survey 【小题3】 (make) by the Belt and Road Research Institute of Beijing Foreign Studies University.

“My wallet is no longer in use. I can buy and eat whatever I want simply with a fingertip on my phone,” said 【小题4】 university student, adding that “even pancake sellers are using mobile payment”.

The bikes 【小题5】 (them) are not new, but the operating model of bike-sharing 【小题6】 (base) on satellite navigation system, mobile payment, big data and other high technologies.

China has entered a new innovative era, thanks to the large amounts of capital China has invested in 【小题7】 (encourage) innovation, said Bernhard Schwartlander, WHO Representative in China.

It is increasingly clear that China is innovating and no longer copying Western ideas. This is especially true in mobile, where China is leading 【小题8】 many ways such as…social messaging app WeChat, she said. This is partly 【小题9】 China skipped over the PC era and went directly to mobile. China has a 【小题10】 (large) mobile use than any other country in the world.

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