What does the underlined word "This" in Paragraph 4 refer to?
A、A quicker solution.
B、A broader initiativ
C、Collective responsibility.
D、Community involvement.
I.Phonetics(5 points)Directions:In each of the following groups of words, there are four underlined letters or letter 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.1.( )