【单选题】QUESTIONS 11-15 Complete the five conversations. For questions 11-15, mark A, B or C on your answer sheet. I don't think I can come to the concert.
【单选题】Questions11~15 are based on the following passageResearchers have shown that noise can adversely affect human in both physiological and psychological ways. Hearing losses in particular occupations suc...
A.
young people are sensitive to high -pitched sounds
B.
young people distinguish low frequency noise better than old people
C.
high frequency noise can cause hearing loss in old people
D.
people in industrialized areas will suffer hearing loss when they are old