扫描二维码，直接登录
题库 / GMATAdvanced-CR-10
Errors in the performance of repetitive or “boring” tasks—often attributed to a momentary lapse in concentration—can be serious in such activities as flying a passenger aircraft. Is there any method that would provide warning of such lapses—for example by monitoring brain activity? Researchers scanned the brains of volunteers performing a repetitive task. When the tasks were being performed correctly, the volunteers’ brains showed activity in cognitive-processing regions. However, these regions became less active several seconds before some errors were made, and another brain region, region X, became active. The researchers concluded that the monitoring of region X could provide warning of an impending error.
Which of the following, if true, most supports the researchers’ conclusion?
The cognitive effort required in performing a repetitive task diminishes significantly with increases in the number of repetitions of the task performance.
Once a mistake was made and detected, brain activity in regions associated with cognitive effort sometimes increased.
Other research found that whenever significant activity occurs in region X, it is generally with repetitive tasks, soon before an error occurs.
The diminution of brain activity in cognitive processing regions and the increase of activity in region X began at least 5 seconds before the errors occurred.
Reduced activity in brain regions associated with cognitive effort was accompanied by increased activity in regions that become active during sleep.
D没有排除X区域即使在没有做错的情况下也会active的可能性（原文说做错X区域一定会active,这样就可以用X检验active，gap就是万一x经常active，如何检验？）
请问D错在哪里了？因为D也是指在做错之前，X区域会提前有反应呀
D哪里错了？
consider: if such activity in region X frequently happened, even when no errors were about to be made, monitoring such activity would not be helpful as a warning that an error was impending. Therefore, ruling this out would support the conclusion.