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There are a lot of steps to complete before we can fully ( ) a plan to switch from regular classes to e-learning.

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【简答题】If you ( ) try harder to think outside the box, ually you might come up with a new solution for an old problem.
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【简答题】Did you know that you can hold up your smart phone to a printed ( ) to download new applications?
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【简答题】For a while, the latest ( ) was green, and now it's sustainability.
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【简答题】One online company is giving a $2,500 ( ) to anyone who can find new ways to use old tires.
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【简答题】That article is full of ( ) new inventions, like the solar-powered necktie fan that is supposed to keep businessmen cool on hot days.
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【简答题】Our group loves the idea of co-housing, developing a shared community on farmland, but the costs of building the basic ( ) are too much for us.
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【单选题】The gasification process uses ____ to reach high temperatures.
A.
garbage
B.
plasma
C.
syngas
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【单选题】The program regularly discusses ____.
A.
garbage
B.
good environmental practices
C.
local news
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【单选题】Two cities that have been involved with landfill gasification projects are____.
A.
Houston and Washington
B.
Richland and Washington
C.
Houston and Richland
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【单选题】One facility using gasification is providing over ____ homes in Seattle with electricity.
A.
500
B.
5,000
C.
500 million
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