听力原文:(A) The woman standing is playing a cassette player. (B) The woman is pointing at
听力,原文
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听力原文:(A) The woman standing is playing a cassette player.
(B) The woman is pointing at the whiteboard.
(C) The woman is giving a presentation.
(D) They are concentrating on their studies.

A.
B.
C.
D.
热搜:可导致听力损伤的药物是
