高考题型提能练(十七) Unit 17
(2016·四川绵阳市高三二诊考试)Many teachers believe that hands－on experience is the __1__(good) way to learn. A group of students in the United States are putting that belief to the test. They __2__ (success) designed and built a robot for discovering unexplored mines __3__ the bottom of the sea. Students made the robot __4__(answer) a challenge from the U．S. Department of Defense.
The students recently tested the underwater vehicle __5__(call) PerseusⅡ in a 95－meter－long tank of water at the Stevens Institute of Technology.
