How did Carnegie immigrate?

Test analysis: this question examines the ability to obtain material information. From the topic "Carnegie, the cover figure," He who can't eat, must eat other people's meals, enterprising entrepreneurs, the road to self-destruction "and other information, we can see that Chen Duxiu advocates learning Carnegie's hard-working and self-made entrepreneurial spirit, so item B is correct; Items a, c and d have nothing to do with the meaning of the question, so they are excluded.