单项选择题

Next time you have a problem, think about how you can improve the situation instead of ______ all the negative aspects.

A. dwelling on
B. counting on
C. barking on
D. touching on
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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
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
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