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题目：
未知类型
A、行政障碍
B、绝对成本优势障碍
C、必要资本量障碍
D、规模经济障碍
答案：
<查看本题扣1积分>
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为安全和保密起见，某企业将信息系统的工作站点集中在一处管理。这种做法是（）
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选择性控制系统常用的防积分饱和方法有（）。
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()具有取得财政收入的实际能力，但却不列入公共预算收入。
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Questions 11 to 15 are based on the following passage. Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu (流感) may make a difference in how long the misery lasts. The American Lung Association (ALA) has issued new guidelines on combating colds and the flu, and one of the keys is being able to quickly tell the two apart. That’s because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come. The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses—flu A, B and C. There is no cure for either illness, but the flu can be prevented by the flu vaccine (疫苗), which is, for most people, the best way to fight the flu, according to the ALA. But if the flu does strike, quick action can help. Although the flu and common cold have many similarities, there are some obvious signs to look for. Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms. The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms. Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome (综合症)，a rare but serious condition of the liver and central nervous system. There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one. According to the author, knowing the cause of the misery will help（） We learn from the passage that （） According to the passage, to combat the flu effectively, （） Which of the following symptoms will distinguish the flu from a cold? （） If children have flu-like symptoms, their parents （）
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患儿，男，4岁，症见形体略较消瘦，面色萎黄少华，毛发稍稀，食欲不振，精神欠佳，易发脾气，大便溏，舌苔薄微黄，治疗首选方是（）
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可以放置快捷方式的位置有（）
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马斯洛认为，人们喜欢一个安全的、有秩序的、可预测的和有组织的世界。()
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人们对某种角色的社会期待不同，会导致个体体验（）。
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推力轴承非工作瓦块的作用是什么？
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原油外输前2-3天，到作业船去检查漂浮（）必须要拖到左舷检查。