【正确答案】
B
【答案解析】[解析]
Did you know that vegetables can be tricked into growing in the climates they are not used lo? Cool climate vegetables are now able to be grown in places as hot as Hawaii. In Hawaii, engineers have been able to convince such vegetables that they are living in cooler climate. That way they grow faster and taste better. What these engineers have been using is cold sea water. How did they use it? They place pipes in the soil and cold water flowed through them cooling the earth. This helps plant growth and enables gardeners in hot climates to grow crops from cooler climates. Also some of the pipes are exposed to the air and thus irrigate the gardens. What is special about this process is that nothing damaging to the natural environment is used. Another use for cold sea water is to cool buildings. People believe that, for example, the entire west coast of the United States could be air-conditioned using sea water.
What docs the new system enable farmers to do?
根据“重视开头”原则，首句为“你知道人们可以在不适宜的气候下种植蔬菜吗?”故选B“在非传统的气候中种植蔬菜”。