单选题. Questions 3 and 4 are based on the news report you have just heard.3.
单选题《复合题被拆开情况》 Soot—also known as black carbon—heats up the atmosphere because it absorbs sunlight. But for years the institutions that focus on climate policy have played down the role of pollutants such
单选题《复合题被拆开情况》 The terms "global warming" and "climate change" are used by many, seemingly interchangeably. But do they really mean the same thing? Scientists shaped the history of the terms while attempt
单选题《复合题被拆开情况》 In this age of Internet chat, videogames and reality television, there is no shortage of mindless activities to keep a child occupied. Yet, despite the competition, my 8-year-old daughter R
单选题 With the start of BBC World Service Television
单选题《复合题被拆开情况》 The terms "global warming" and "climate change" are used by many, seemingly interchangeably. But do they really mean the same thing? Scientists shaped the history of the terms while attempt
单选题Universal Health Care，Worldwide，Is Within ReachA By many measures the world has never been in better health.Since 2000 the number of children who die before they are five has fallen by almost half，t0
单选题. Questions 23 to 25 are based on the passage you have just heard.8.
单选题《复合题被拆开情况》 According to some leading researchers, the universe could end in 5 billion years. Perhaps this is too morbid 病态的 given our current situation across the world, we should not be talking about
单选题. Questions 22 to 25 are based on the passage you have just heard.7.
单选题Every office worker hates meetings.But its a strange sort of hate，similar to the hatred of Londoners for the Northern Line，or New Yorkers for tourists who walk too slowly：the dislike is real，yet
单选题. Questions 1 and 2 are based on the news report you have just heard.1.
单选题 Ellen was a painter of birds and nature, ______