【单选题】It was once thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic.Today,we know that although these are the areas with the worst...
【单选题】Task 1 Compare these two texts on mobile phones. How are opinions and ideas presented in each of the texts? Which do you think is more academic? Text 1 I think that mobile phones have a negative eff...
【简答题】Libraries play an important role in our lives. Now, there’s even a law that can help us better enjoy the services that libraries provide. China’s first national public library law has gone into effect...
【单选题】(Yet there are good reasons to expect the economic consequences now to be less severe than in the 1970s. In most countries the cost of crude oil now accounts for a smaller share of the price of petrol...