题干

根据下表中的信息我们可以得出的结论是(  )

王朝

疆域

今河南中西部、山西南部一带

今河南全部、河北南部、山东西部、陕西东部为中心

西周

今河南、河北、山东全部,陕西大部,南到长江下游地区

A:夏、商、周是当时世界上最大的国家

B:河南和山西是中国古代最发达的地区

C:夏、商、周维持统治的时间越来越长

D:早期国家形成时期的疆域在不断扩大

上一题 下一题 0.0难度 选择题 更新时间:2015-11-06 10:22:11

答案(点此获取答案解析)

D

同类题4

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    You never played the video dance game? Now such games are used to help lose weight!

    Like many other teenage boys, Jones loves sports. But at 5 feet, 175 pounds, he found his weight in trouble. His doctor wanted him to lose 50 pounds so that he may be a good football game player by the end of the summer.

    Jones chose the popular Dance Revolution video game at home to increase his activity. He had lost about 10 pounds by changing his diet. Now, after two weeks' playing the game, he has lost another 10!

    A health study is being done by an insurance company. The company hopes that the game will lead to better health and lower costs. “Obesity claims last year cost us $ 77 million. We have to cut those costs,” said a member of the insurance group. The company provides a game console (游戏主机), a dance mat and software for the six-month, $ 60,000 study.

    The study is more than a commercial thing of an insurance company. It is widely supported by physical education and health professionals.

    In West Virginia, 43% of the nearly 6,000 children examined for heart disease risk were considered over-weighted; more than 25% were too fat. “We are in a crisis of childhood obesity not only in West Virginia but in America,” said a researcher.

    Researchers are now looking at the potential for improving effects by using the game. A teacher in West Virginia has been using the video games in her classes since last fall. She reported that the game does improve heart health as well as eye-hand coordination (协调能力), and her students take the video game as a great alternative to jumping rope or ball games.

    The US Education Department is putting the game in 20 schools to control childhood obesity. Well, are you going to try such to dance away your extra weight?