What is the most important task of philosophy according to Socrates?
A、Understanding our true self.
B、Examining some basic concepts.
C、Challenging the views of enemies.
D、Giving explanations for arguments.
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Directions:In each of the following groups of words, there are four underlined letters or ltter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet。