单项选择题

The primary purpose of the passage is to ______.

A．explain the need for the introduction of an innovative strategy
B．discuss a study of the use of a particular method
C．recommend a course of action
D．resolved a difference of opinion
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单项选择题
According to the passage, before the final results of the study were known, which of the following seemed likely
A．That workers with the highest productivity would also be the most accurate.
B．That workers who initially achieved high productivity ratings would continue to do so consistently.
C．That the highest performance ratings would be achieved by workers with the highest productivity.
D．That the most productive workers would be those whose supervisors claimed to value productivity.
单项选择题
The passage suggests which of the following about service provided by the regional bank prior to its in vestment in enhancing that service
A．It enabled the bank to retain customers at an acceptable rate.
B．It threatened to weaken the bank's competitive position with respect to other regional banks.
C．It had already been improved after having caused damage to the bank's reputation in the past.
D．It was slightly superior to that of the bank's regional competitors.
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