听力音频： https://mp.weixin.qq.com/s/MjRQVdVzI5p71WZvZ7_low?token=22065977&lang=zh_CN L3： Question 6 of 11 What is the main purpose of the lecture? To e...

  Part 3 You should spend about 20 minutes on Questions 28-40, which are based on Reading Passage 3 below. THE WATER CRISIS Greater efficiency in water use is needed to mee...

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听力音频： https://mp.weixin.qq.com/s/tFhBegSDA_hn5rj3MkTBOw?token=22065977&lang=zh_CN C2： Conversation 2 第一题 What are the speakers mainly discussing? A Why the man...

WS 041C1

Part 3 You should spend about 20 minutes on Questions 28-40, which are based on Reading Passage 3 below. THE IRON BRIDGE The Iron Bridge was the first of its kind in Europe and i...

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听力音频： https://mp.weixin.qq.com/s/9aeSjk7Nj4Jg8Zg2pSXaRw?token=22065977&lang=zh_CN L1： Question 6 of 17 What is the lecture mainly about? How to choose a research que...

Part 3 You should spend about 20 minutes on Questions 28-40, which are based on Reading Passage 3 below. The California Gold Rush of 1849 The discovery of gold in the Sacramento V...