题目内容：
(Questions 18-22)·You will hear another five short pieces．
·For each piece decide who iS talking．
·Write one letter(A-H)next to the number of the piece．
·You wilI hear the five pieces twice．
18._______
19._______
20._______
21._______
22._______
第(18)题______ A．cloth
B．vitamins
C．medicine
D．picture
E．dress
F．voice
G．silk
H．apple
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答案解析：