题目内容

It enables drivers to spend less time looking for parking and 7)___________________.

A. reduce air pollution
B. reduces pollution
C. reduces air pollution
D. reduce pollution

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Smart Home: The Smart Home 8) _______ achieve automated and sustainable living.

A. aim to
B. aims at
C. aim at
D. aims to

The energy, gas and water bills can be saved not only by 9)________________ on and off and controlling electrical appliances,

A. intelligent switch
B. intelligent switching
C. intelligently switching
D. intelligently switch

but also by the insights into 10) _____________________.

A. consumer's habits
B. consumers' habit
C. consumers' habits
D. consumer's habit

As the keynote speaker at the Forbes 1)_____Summit on Philanthropythis June, Bill Gates took the podium (颁奖台)

A. 4000
B. 400
C. 500
D. 40