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男性，45岁，畏寒发热13天。体检：体温39.5℃，血压80/50mmHg(10.6/6.7kPa)，右上肢可见瘀斑，双肺呼吸音粗，呼吸30次/分，肝肋下未扪及，脾左肋下恰扪及；血红蛋白112g/L，白细胞18×109/L，血小板56×10 9/L，PTl7秒(对照12秒)，纤维，蛋白原定量1390mg/L。该患者最可能的诊断是
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Professor Smith recently persuaded 35 people, 23 of them women, to keep a diary of all their absent-minded actions for a fortnight. When he came to analyze their embarrassing lapses (差错) in a scientific report, he was surprised to find that nearly all of them fell into a few groupings. Nor did the lapses appear to be entirely random (随机的). One of the women, for instance, on leaving her house for work one morning threw her dog her earrings and tried to fix a dog biscuit on her ear. "The explanation for this is that the brain is like a computer," explains the professor. "People programme themselves to do certain activities regularly. It was the woman’s custom every morning to throw her dog two biscuits and then put on her earrings. But somehow the action got reversed in the programme." About one in twenty of the incidents the volunteers reported were these "programme assembly failures". Altogether the volunteers logged 433 unintentional actions that they found themselves doing—an average of twelve each. There appear to be peak periods in the day when we are at our zaniest (荒谬可笑的). These are two hours some time between eight a. m. and noon, between four and six p.m. with a smaller peak between eight and ten p.m. "Among men the peak seems to be when a changeover in brain ’programmes’ occurs, as for instance between going to and from work." Women on average reported slightly more lapses—12.5 compared with 10.9 for men probably because they were more reliable reporters. A startling finding of the research is that the absent-minded activity is a hazard of doing things in which we are skilled. Normally, you would expect that skill reduces the number of errors we make. But trying to avoid silly slips by concentrating more could make things a lot worse, even dangerous. It can be concluded from the passage that ______.
珠海市海关在进行报关检查时，发现龙鹏对外贸易公司出口的棉纱超出了国家关于棉纱出口限额的规定，遂决定将这批棉纱扣留，龙鹏公司不服珠海海关扣留全部棉纱的决定，遂提起行政复议，复议机关改变了珠海市海关的行为，决定将超出限额的棉纱扣留，限额内的棉纱仍交给龙鹏公司出口，但当龙鹏公司去海关处提取棉纱时，发现因海关管理上的疏忽，棉纱已经浸水，不能再用来履行出口合约，龙鹏公司欲提起诉讼，挽回损失。根据以上题目，回答下列问题： 关于本案的下列说法，正确的有哪些( )
综合安全技术 在机械设备上采用和安装各种安全有效的防护装置，这是( )。
简述留置权的概念和成立条件。
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