[求助]885 test III 20题

robertchu

用排除法可以得到D.

robertchu

Yes, D is right.

This is an assumption question.  

So, you can try deny test on D.  

Deny D, we get "Distinguishing a correct prediction and effective action from an incorrect prediction and ineffective action is possible."    If so, the position "When people ... , they believe that they have learned that the prediction is correct when the action is taken and the result occurs" is strengthened.    And the original argument's position, "it often becomes clear that the result admits of more than one interpretation" is severely weaken.    So, D is a necessary assumption for the argument.