题型：语法填空（语篇） 题类：常考题 难易度：困难
人教版（新课程标准）高中英语必修五Unit 3 Life in the future单元测试
Many teachers believe that the hands-on experience is the (good) way to learn. A group of students in the United States are putting that belief to the test. They (success) designed and built a robot for discovering unexplored mines the bottom of the sea. Students made the robot (answer) a challenge from the US Department of Defense.
The students recently tested the underwater vehicle (call) PerseusⅡ in a 95-metre-long tank of water at the Stevens Institute of Technology.
The robot costs about $15,000 to build. The students use a video game controller to direct 4(it) movements in the tank. What's more, devices known as Japters (able) the robot to go up, down and towards its target in the water. Video cameras on the robot send images back to a computer through a 13-metre-long cable. Perseus Ⅱ,the students worked up to 20 hours a week to design and build, also has set of lasers, which are used to measure the size of an object.
DeLorme supervised the project from (begin) to end. He said the specialized requirements of robots were demanding.
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