佛教教义中的“四念处观”，是苦的根源，行苦、受苦、苦苦是苦的种类，这四者既是苦的原因，也是苦的结果。()

A. an editor of the magazine is meant to become a scientist
B. Angelo didn"t show his artistic talent as a young boy
C. Jorge didn"t dream of being a cartoonist since little
D. people are wasting their time by reading PHD

A. prove that people should quit doing ordinary work to grab new opportunities
B. explain why people have heard the saying for so many times
C. state that successful scientific career needs thorough consideration
D. demonstrate that picking a good lab is of great significance to one"s postdoc