下列哪种症状、体征在右心衰时不常出现（）。A．劳累性呼吸困难 B．腹胀、食欲不振、恶 发布时间：2017-06-21 09:35 │ 来源：www.tikuol.com 题型：单项选择题 问题： 下列哪种症状、体征在右心衰时不常出现（）。A．劳累性呼吸困难B．腹胀、食欲不振、恶心、呕吐C．粉红色泡沫状痰D．水肿E．肝脏肿大
题型：单项选择题 心电图V3～V5导联出现ST段弓背抬高0.3mV，Ⅱ、Ⅲ、aVF、V1～V2导联ST段下移0.1～0.2mV，5分钟后再次检查发现ST段回复至基线，最可能的诊断是（）。A.超急性前侧壁心肌梗死B.急性下壁心肌缺血C.早期复极综合征D.变异型心绞痛E.急性心包炎 查看答案
题型：单项选择题 阅读理解。 Fire can help people in many ways. But it can also be very harmful. Fire can make water hot and house warm, give light and cook food. But fire can burn (燃烧) things, too. It can make trees, houses, animals andother things catch fire (起火). If some people can't run away from fire, it can kill them. This happens in every country every year. Sometimes big fire can burn forests. A month ago, a large forest fire broke out in Yunnan Province. Itlasted nearly half a month. The forest in Heilongjiang Province and the grassland in Inner Mongolia caught firein May, 2006. After more than ten days' fight, over 30,000 people and soldiers put out (扑灭) the fire at last. Nobody knows clearly when people began to make fire, but there are many interesting stories about the first time a man or a woman started a fire. One story from Australia tells about a man who went to the sun and brought fire down a long time ago. Today people know how to make a fire with matches (火柴). Childrensometimes like to play with them. But matches can be very dangerous. The match can burn a piece of paper and then it can burn a house. A small fire can become a big fire, and destroy many things. Fire kills many people every year. So you must be careful with fire. 1. The main idea of the passage is that _____. [ ]A. fire is dangerous and harmfulB. forest fire can be easily put outC. who started a fire the first time D. every month there is a forest fire in Yunnan Province 2. Matches can be dangerous because _____. [ ]A. they always burn a house B. they can make things catch fire C. they can burn a piece of paper D. they kill many animals every year 3. Which of the following is TRUE? [ ]A. Someone started a fire in Heilongjiang Province. B. Fire was brought down from the sun long, long ago. C. We can only make a fire with a match. D. Playing with fire is dangerous. 4. The word"destroy" in the passage means _____ in Chinese. [ ]A. 破灭 B. 炸毁 C. 毁灭 D. 粉碎 5. The writer of the passage wants to tell us that _____. [ ]A. we know when man began to make a fireB. people should use fire carefully C. fire can burn down all things in the world D. all children like to play with matches √ 查看答案
题型：单项选择题 在神经变性疾病中，血-脑脊液屏障（BBB）损伤，血管周细胞和脑毛细血管内皮细胞产生多种炎性因子，影响BBB通透性，并诱导黏附因子表达，调控内皮细胞信号传导。与BBB通透性改变无关的细胞因子是（）A.血小板活化因子B.血管内皮生长因子C.血管生成素D.肿瘤坏死因子E.血管细胞黏附因子 查看答案
A
/2
/2A