超星 - u2a-3 - 查题吧

单选题

Thanks to the ________ of air transport, everyone is free to go anywhere at any time.

A. efficient
B. efficiently
C. efficiency
D. efficiencies

单选题

Mary was a careful speaker; every word seemed to have been ________ before it was allowed to escape through her lips.

A. polished
B. accomplished
C. polish
D. accomplish

单选题

The wedding ceremony of my sister was a very ________ experience for our family.

A. functional
B. emotional
C. rational
D. sectional

单选题

The local government is pressed to find new places to ________ waste.

A. dumb
B. dump
C. duck
D. dust

单选题

The new system designed to ________ harmful emissions (排放物) from factories will be put into use soon.

A. curl
B. curse
C. curve
D. curb

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