Why does social media get risky according to the author?
A、The users’ social connection is lost.
B、The users’ messages may be ignored.
C、The users ' real emotion may be hidden.
D、The users' voices can hardy be heard.
What is true about Socrates?
A、Socrates solved the problems of Westerm philosophy.
B、Socrates tried to find answers to his questions.
C、Socrates forced his enemies to accept his ideas.
D、Socrates cared about the meaning of life.
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。