单项选择题


A．prevents
B．produces
C．provides
D．predicts
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单项选择题
The word empirical in Para. 3 most probably means ______ .
A．theoretical
B．critical
C．indisputable
D．experiential
单项选择题
According to the passage, standardized tests work most effectively when ______.
A．the user knows how to interpret the 'results in advance
B．the objectives are most clearly defined
C．the persons who take the test are intelligent or skillful
D．they measure the traits or qualities of the tests
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