One of the most famous bridges in the world is the Golden Gate Bridge that spans San Francisco Bay. Because it was built in 1937 ,it has become one of the first sights people see if they are coming to San Francisco by ship. The main part of the Golden Gate Bridge is a suspension span. It hangs from steel cables that are supported by two. huge towers, one at each end of the bridge. The suspension span was the longest in the world when it was finished in 1937. It measures 4,200 feet between the towers. The floor of the bridge is wide enough for six lanes of cars, three in each direction. There are sidewalks, too, but not many people use them. It costs a lot of time to go on foot from one end of the bridge to the other.
The years since 1950 have been called the era of the giant bridge. Most of them have been built in the United States. The Mackinac Bridge in upper Michigan was finished in 1958. It is a suspension bridge, with foundations resting on rock 200 feet below th
Doctors in Britain are warning of all obesity time
bomb, when children who are already overweight grow up. So, what should we do
Exercise more Eat less Or both The government feels it has to take
responsibility for this expanding problem. The cheerful Mr. Pickwick, the hero of the novel by Charles Dickens, is seen in illustrations as someone who is plump (胖乎乎的) and happy. In 18th century paintings beauty is equated with rounded bodies and soft curves. But nowadays being overweight is seen as indicating neither a cheerful character nor beauty but an increased risk of heart disease and stroke. So what do you do Diet Not according to England’s chief medical officer, Sir Liam Donaldson. He says that physical activity is the key for reducing the risks of obesity, cancer and heart disease. And the Health Secretary John Reid eve A. Being on diet. B. Giving up smoking. C. Being as inactive as possible. D. Doing physical activities. [单选题]移动式电动机械和手持电动工具的三相电源线在三相四线制系统中应使用()芯软橡胶电缆。
A.二 B.三 C.四 D.五 [单项选择]以活血祛瘀,疏肝通络为主要功用的方剂是()
A. 膈下逐瘀汤 B. 加味逍遥散 C. 血府逐瘀汤 D. 复元活血汤 E. 身痛逐瘀汤 [判断题]境内公司、企业或自然人以其在境外合法设立或控制的公司名义并购与其有关联关系的境内公司,所设立的外商投资企业可以享受外商投资企业待遇。()
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