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A、While sitting in their school’s courtyard. B、While playing games on their phones. C、While solving a mathematical problem. D、Wh
A、While sitting in their school’s courtyard. B、While playing games on their phones. C、While solving a mathematical problem. D、Wh
admin
2022-09-04
96
问题
Three university students in Santiago, Chile, have developed a plant-powered device to charge their mobile phones
.
The three engineering students got the idea for the device while sitting in their school’s courtyard
. Their invention is a small biological circuit they call E-Kaia.
It captures the energy which plants produce during photosynthesis
—a process of converting sunlight into energy.
A plant uses only a small part of the energy produced by that process. The rest goes into the soil. E-Kaia collects that energy. The device plugs into the ground and then into a mobile phone.
The E-Kaia solves two problems for the engineering students. They needed an idea for a class project. They also needed an outlet to plug in their phones.
One of the student inventors, Camila Rupcich, says the device changes the energy released from the plant into low-level power to charge phones.
The E-Kaia is able to fully recharge a mobile phone in less than two hours.
5. What did the three university students invent?
6. When did they get the idea for the invention?
7. What does the speaker say about the invention?
选项
A、While sitting in their school’s courtyard.
B、While playing games on their phones.
C、While solving a mathematical problem.
D、While doing a chemical experiment.
答案
A
解析
事实细节题。新闻中提到,这三名工程系的学生坐在学校的院子里时产生了发明这种设备的想法。
转载请注明原文地址:https://kaotiyun.com/show/0XjJ777K
0
大学英语四级
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