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题目：
未知类型
A.当然无效
B.并非当然有效
C.一定无效
D.应当无效
答案：
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最可能的诊断是（） 此时，最有效的急诊处理为（） 该患者基本的病理生理变化为（）
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圆筒形容器的主要承压部件是（）
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水泥路面板唧泥产生的原因（）。
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广义的产品寿命周期阶段除产品设想期；产品设计期以外，还包括（）。
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硝酸银一般用于新生儿滴眼预防淋病奈瑟菌感染，有时也用于实验室预防眼内的感染，应用的浓度是()
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导致生物多样性减少的一个重要因素是（）
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肾病综合征低蛋白血症的主要原因是（）。
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Moderate Earthquake Strikes England A moderate earthquake struck parts of southeast England on 28 April 2007, toppling chimneys from houses and rousing residents from their beds. Several thousand people were left without power in Kent County. One woman suffered minor head and neck injuries. "It felt as if the whole house was being slid across like a fun-fair ride," said the woman. The British Geological Survey said the 4. 3-magnitude quake struck at 8:19 a.m. and was centered under the English Channel, about 8.5 miles south of Dover and near the entrance to the Channel Tunnel. Witnesses said cracks appeared in walls and chimneys collapsed across the county. Residents said the tremor had lasted for about 10 to 15 seconds. "I was lying in bed and it felt as if someone had just got up from bed next to me." said Hendrick van Eck, 27, of Canterbury about 60 miles southeast of London. "I then heard the sound of cracking, and it was getting heavier and heavier. It felt as if someone was at the end of my bed hopping up and down." There are thousands of moderate quakes on this scale around the world each year, but they are rare in Britain. The April 28 quake was the strongest in Britain since 2002 when a 4.8-magnitude quake struck the central England city of Birmingham. The country's strongest earthquake took place in the North Sea in 1931, measuring 6.1 on the Richter scale. British Geological Survey scientist Roger Musson said the quake took place on 28 April in an area that had seen several of the biggest earthquakes ever to strike Britain, including one in 1580 that caused damage in London and was felt in France. Musson predicted that it was only a matter of time before another earthquake struck this part of England. However, people should not be scared too much by this prediction, Musson said, as the modern earthquake warning system of Britain should be able to detect a forthcoming quake and announce it several hours before it takes place. This would allow time for people to evacuate and reduce damage to the minimum. The April 28 quake was stronger than the one of 2002.（）
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昏迷患者需要提供部分补偿系统。
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投标保证金有效期应当超出投标有效期()天。