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Lesson 25 Non-auditory effects of noise 噪音的非听觉效应 First listen and then answer the following question. 听录音，然后回答以下问题。 What conclusion does the author draw about noise and health in this piece? May people in indu
发表于:2018-12-08 / 阅读(620) / 评论(0)
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Sen. Tom Harkin, D-Iowa, right, and House Majority Leader Steny Hoyer of Md., attend an event on Capitol Hill in Washington 26 Jul 2010 to celebrate the Americans with Disabilities Act The Americans with Disabilities Act, also called ADA, is a civil
发表于:2019-01-13 / 阅读(79) / 评论(0)
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