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Passage 1 It's one of our common beliefs that mice are afraid of cats. Scientists have long known that even if a mouse has never seen a cat before, it is still able to detect chemical signals released from it and run away in fear. This has always been thought to be something that is into a mouse's brain. But now Wendy Ingram, a graduate student at the University of California, Berkeley, has challenged this common sense. She has found a way to "cure" mice of their inborn fear of cats by infecting them with a parasite, reported the science journal Nature. The parasite, called Toxoplasma gondii, might sound unfamiliar to you, but the shocking fact is that up to one-third of people around the world are infected by it. This parasite can cause different diseases among humans, especially pregnant women-it is linked to blindness and the death of unborn babies. However, the parasite's effects on mice are unique. Ingram and her team measured how mice reacted to a cat's urine (尿) before and after it was infected by the parasite. They noted that normal mice stayed far away from the urine while mice that were infected with the parasite walked freely around the test area. But that's not all. The parasite was found to be more powerful than originally thought-even after researchers cured the mice of the infection. They no longer reacted with fear to a cat's smell, which could indicate that the infection has caused a permanent change in mice's brains. Why does a parasite change a mouse's brain instead of making it sick like it does to humans? The answer lies in evolution. "It's exciting scary to know how a parasite can manipulate a mouse's brain this way," Ingram said. But she also finds it inspiring. "Typically if you have a bacterial infection, you go to a doctor and take antibiotics and the infection is cleared and you expect all the symptoms to also go away." She said, but this study has proven that wrong. "This may have huge implications for infectious disease medicine."The passage is mainly about ______.
女性，26岁，发热2天入院。发热伴头痛、乏力，无咳嗽，咳痰。体温：38.5℃，实验室检查血象无异常。其家庭成员1周前有传染性非典型肺炎疑似病例。目前诊断应首先考虑为（ ）。
关于收益率曲线的说法中，正确的是（）。
治疗热闭神昏，常与麝香配伍相须使用的药物是（）
变更中、小站电气集中，非集中联锁以及其他联锁关系及电路图，由（）批准。
智能教育的远期目标包括以下哪几个（）。
某市的一家建筑工程公司准备实施经济性裁员，那么，依据《劳动法》的规定，在下列人员中，该建筑工程公司不得与其解除劳动合同的有()。
视频流有单播或组播方式。控制流通常采用（）方式。
混凝土在受力后的变形有（）和（）。
The structures vary in ships’ types.（）
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