问题详情

~ You will hear five short pieces, ~ For each piece decide what the speaker is, ~ Write one letter (A-H) next to the number of the piece.~ You will hear the five pieces twice, 13__________ 14__________ 15__________ 16__________ 17__________ A to deal with the systems administration B an assistant C a group accountant D a host E a worker F an administrator G a teacher H a doctor 13___________请帮忙给出正确答案和分析，谢谢！