单项选择题

（）is the question of using existing resources to produce original and beneficial solutions, ideas or products.

A. Creativity
B. Productivity
C. Application
D. Combination

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单项选择题
She ______ for a while and was unable to make a decision, so she asked for my help.
A. flickered
B. glittered
C. faltered
D. blinked
单项选择题
During the late 1950s, the Brazilian economy（）forward as heavy industries and basic infrastructure--roads, communications, and construction--expanded.

A. increased
B. splashed
C. surged
D. improved
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