The FDA was created to __ the safety of products, review applications and grant approvals.A. manipulate B. adjust C. regulate D. managePART III CLOZE TEST (10 minutes, 10 points, 1 point each)Tall people earn considerably相当的more money throughout their lives than their shorter co-workers, with each inch adding about US$789 a year in pay, according to a new study. "Height__career success," says Timothy Judge, aUniversityofFloridaprofessor of management, who led the study. "These findings are troubling since, with a few__, such as professional basketball, no one could argue that height is something essential required for job__," Judge points out.Dr Bala and his colleagues took such effects into account using a computer model called the Integrated Climate and Carbon Model. Unlike most climate-change models, which calculate how the Earth should absorb and radiate heat in response to a list of greenhouse-gas concentrations, this one has many subsections that represent how the carbon cycle works, and how it influences the climate.Overall, Dr Bala's model suggests that complete deforestation would cause an additional 1.3ْC temperature rise compared with business as usual, because of the higher carbon-dioxide levels that would result. However, the additional reflectivity of the planet would cause 1.6ْC of cooling. A treeless world would thus be 0.3ْC cooler than otherwise.No one, of course, would consider chopping down the world's forests to keep the planet cool. But having made their point, Dr Bala and his colleagues then went on to look at forest growth and loss at different latitudes. Planting trees in convenient places such as Europe andNorth Americamay actually be counterproductive. InRussiaandCanada, cutting trees down led mostly to local cooling. The carbon dioxide this released into the atmosphere, though, warmed the world all over. Around the equator, by contrast, warming acted locally (as well as globally), so a tropical country would experience warming created by cutting down trees.The results follow increasing criticism from climate scientists of the benefits of forestry schemes to offset carbon emissions. Planting trees to neutralise carbon emissions has become a big business: £60m worth of trees have been bought this year, up from £20m in 2005. By 2010 the market is expected to reach £300m.