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哪种食物还能防止色素沉积,补充雌激素?()
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冻雨是冬季的一种天气现象。当雨滴从空中落下来时,由于近地面的气温很低,在地表冻结上一层晶莹透亮的薄冰,气象上把这种天气现象称为“冻雨”。读某日我国冻雨区预报图,据此完成下列小题。 导致图示区域冻雨频发的主要原因是() 下列示意图能正确反映此时贵阳近地面气温垂直变化的是()
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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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出现咳嗽、咳痰()周以上,或痰中带血,应及时检查是否得了肺结核。
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资产负债表中的资产项目是按照资产的()顺序排列。
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急性失血量最高为体重的多少时,机体能代偿()。
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被测量工件尺寸公差为0.03mm~0.10mm,应选用()。
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以下对IP地址说法不正确的是()
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肝脏是药物排泄的主要器官,药物在体GV内代谢的主要场所是肾脏()
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香烟燃烧后的烟雾中含有()有害物质,吸烟会导致人产生肺部、心血管、骨质疏松、癌症等多种疾病。