继续提问
Then comes the second stage in the process of cognition , the stage leading from consciousness back to matter, from ideas back to existence, in which the knowledge gained in the first stage is applied in social practice to ascertain whether the theories, policies, plans and measures meet with the anticipated success
It can seen that in the second stage_____
A: actions are taken to ascertain consciousness
B: exact knowledge is acquired rather than taught
C: conventional wisdom is radically challenged
D: cognitive processes take place
我一直在A和D之间徘徊,请好心人帮忙解答,谢谢!!