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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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刷刷题刷刷变学霸
举一反三

【单选题】The program regularly discusses ____.

A.
garbage
B.
good environmental practices
C.
local news

【单选题】Critics of the gasification process believe that____.

A.
we should focus on recycling
B.
gasification has great potential
C.
gasification is bad for the environment