单选题______ both in working life and everyday living to different sets of values, and expectations places a severe strain on the individual.

单选题I think it was all fixed up by lawyers or ______ arranges adoptions.

单选题Consumer groups are {{U}}protesting against{{/U}} higher prices in this city now.

单选题 It is easy to miss amid the day-to-day headlines of global economic recession, but there is a less conspicuous kind of social upheaval (剧变) underway that is fast altering both the face of the planet and the way human beings live. That change is the rapid acceleration of urbanization. In 2008, for the first time in human history, more than half the world's population was living in towns and cities. And as a recently published paper shows, the process of urbanization will only accelerate in the densely to come—with an enormous impact on biodiversity and potentially on climate change. As Karen Seto, the lead author of the paper, points out, the wave of urbanization isn't just about the migration of people into urban environments, but about the environments themselves becoming bigger to accommodate all those people. The rapid expansion of urban areas will have a huge impact on biodiversity hotspots and on carbon emissions in those urban areas. Humans are the ultimate invasive species—when they move into new territory, they often dis-place the wildlife that was already living there. And as land is cleared for those new cities—especially in the dense tropical forests—carbon will be released into the atmosphere as well. It's true that as people in developing nations move from the countryside to the city, the shift may reduce the pressure on land, which could in turn be good for the environment. This is especially so in desperately poor countries, where residents in the countryside slash and bum forests each growing season to clear space for fanning. But the real difference is that in developing nations, the move from rural areas to cities often leads to an accompanying increase in income—and that increase leads to an increase in the consumption of food and energy, which in turn causes a rise in carbon emissions. Getting enough to eat and enjoying the safety and comfort of living fully on the grid is certainly a good thing—but it does carry an environmental price. The urbanization wave can't be stopped—and it shouldn't be. But Seto's paper does underscore the importance of managing that transition. If we do it the right way, we can reduce urbanization's impacts on the environment. 'There's an enormous opportunity here, and a lot of pressure and responsibility to think about how we urbanize,' says Seto. 'The one thing that's clear is that we can't build cities the way we have over the last couple of hundred years. The scale of this transition won't allow that.' We're headed towards an urban planet no matter what, but whether it becomes heaven or hell is up to us.

单选题______ is more important than ______.

单选题Such policies have also enabled companies such as McMullens to take advantage of recession- ary periods rather than be forced into taking______ measures.

单选题If prisoners behave well they are allowed the ______ of visiting their families at the weekend.

单选题Some forgeries are intended to confound or ridicule the expels; others are intended to imitate an artist or genre.

单选题The Portuguese give a great deal of credit to one man for having promoted sea travel, that man ______ prince Henry the navigator, who lived in the 15th century.

单选题We can learn from the text that a computer can ______. A．be best used as a calculating device B．be best used in word processing C．find uses almost everywhere D．have intelligence of its own

单选题Justice, as well as the law, ______that these robbers be severely punished.

单选题Which of the following is TRUE about the north polar cap of Mars in summertime?

单选题The foreign student advisor recommended that she ______ more English before enrolling at the university.

单选题Those who spread superstition did not welcome public diversions because ______.

单选题Very young children with no reading experience may astound their parents with the first words they read, such as a department store sign announcing Big Sale.

单选题The map was drawn to the standard ______ of 1/100000 so there was not much detail.

单选题Mrs. Smith went shopping ______.