What is true about today' s communication through social media?
A、It causes more health risks.
B、It gives litle communication context.
C、It leads to better relationships.
D、It improves the quality of interaction.
56.()
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.