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
The goals and desires ______ widely between men and women, between the rich and the poor.
A．swing
B．vary
C．distinguish
D．transfer
单项选择题
Chemistry is closely ______ with other studies, physics, biology and so on.
A．corresponded
B．concerned
C．correlated
D．cooperated
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