题目内容

… it could cut nearly all of the carbon emissions from the transportation sector. （Para. 2）（）

A. business
B. commerce
C. field
D. None of the above

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While some transportation researchers have suggested autonomous cars could cut emissions by boosting driver efficiency, … （Para. 6）（）

A. affecting
B. improving
C. combining
D. None of the above

It’s becoming increasingly clear that all three of these possible revolutions are reaching maturity, … （Para. 5）（）

A. full development
B. extreme point
C. climax
D. None of the above

Imagine looking around you and activating a digital overlay that gives you volumes of information about your surroundings. （Para. 5）（）

A. many books
B. large amounts
C. a lot of content
D. None of the above

The last few years have pointed toward mobile computing. （Para. 2）（）

A. calculating
B. using a computer
C. doing mathematics
D. None of the above