读右简图，其中甲、乙表示两个不同的区域，下列叙述正确的是
A．若甲表示我国的东部地区，乙表示中西部地区，则沿箭头①方向在区域间调配的是水资源
B．若甲表示发达国家，乙表示发展中国家，则沿箭头②方向在区域间调配的是劳动力
C．若甲表示山西，乙表示京津唐地区，则①表示煤炭，②表示电力
D．若甲表示陆地，乙表示海洋，则①表示径流，②表示水汽输送
BD
我国水资源调配为南水北调，A选项错误；山西往京津唐地区输送的除了煤炭，还有坑口电站的电力，C选项错误。
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| Life in 30 years will be 1 because many changes will take place, but what will the changes be? The population is growing fast. There will be 2 people in the world and most of them will live longer than before. Computers will be 3 smaller and more useful, and there will be at least one in every home. And computer studies will be one of the important 4 in school. People will work fewer hours than they are doing now, and they will have more free time for sports, watching TV and traveling. Traveling will be much cheaper and 5 . And many more people will go to other countries 6 holidays. There will be changes in our food, too. More land will be used for 7 new towns and houses. Then there will be less 8 for cows and sheep, so meat will be more expensive. Maybe people won't eat it every day, they will eat more vegetables and fruit instead. Maybe people will be healthier. Work in the future will be different, too. Dangerous and hard work will 9 by robots. Because of this, many people will not have 10 to do. This will be a problem. | ||||
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