单项选择题

It can be inferred from the passage that random fluctuation __________.

A．is good to the desired transformation
B．will affect the quality of the goods produced
C．can provide information for the managers as feedback
D．does not help to provide enough information for the managers
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单项选择题
...nor does giving people breakfast improve performance meads __________.
A．anyone without breakfast does improve his performance
B．not giving people breakfast improve performance
C．having breakfast does not improve performance, either
D．people having breakfast do improve their performances, too
单项选择题
The main idea of the second paragraph is that __________.
A．random fluctuation can be eliminated from the transformation process from inputs into outputs
B．the transformation process from inputs into outputs can not' be free from random fluctuation
C．human errors are the sole causes for random fluctuation
D．the inherent problems in the transformation process are the most important for random fluctuation
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