问题
多项选择题
在缺血所致的急性肾小管坏死的发病机制中，关于肾血流动力学异常，叙述正确的有（）。
A.肾皮质和肾髓质血流量减少
B.肾血浆流量下降，肾内血流重新分布
C.血管收缩因子产生过多，舒张因子产生相对过少
D.肾素-血管紧张素系统兴奋
E.肾内舒张血管性前列腺素合成减少，缩血管性前列腺素产生过多
答案
参考答案：B, C, D, E
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在缺血所致的急性肾小管坏死的发病机制中，关于肾血流动力学异常，叙述正确的有（）。
A.肾皮质和肾髓质血流量减少
B.肾血浆流量下降，肾内血流重新分布
C.血管收缩因子产生过多，舒张因子产生相对过少
D.肾素-血管紧张素系统兴奋
E.肾内舒张血管性前列腺素合成减少，缩血管性前列腺素产生过多
参考答案：B, C, D, E
You must know the “ding dong ditch”. Person A rings Person B’s doorbell, and then quickly runs away or hides before Person B answers. Person B hurries to answer the door, only to find that no one’s there. After the 1 thing is repeated several times, this is called “ding dong ditch”. Sharon Mardis, a single mother of four, told ABC News that she 2 a “ding dong ditch” when she 3 to her door at 1:00 am last night. “My doorbell started ringing, 4 I came to the door,” Sharon told ABC News. “There was 5 at the door. I went back in the house. I got ten or twenty 6 and the doorbell started ringing again. I came back to the door, still nobody at the door.” She got 7 and stepped outside, shouting, “Who’s that? What on earth are you going to do?” There was just 8 . But after Sharon returned to the house, she 9 something. Smoke! Sharon quickly 10 her kids and the family pets and ran out of the house. Only then did she 11 how bad the fire was. The 12 of the house fell down; the house was quickly 13 by flames. The smoke detectors(探测器) had never 14 : they were out of batteries. Good thing for the doorbell. The 15 is who had rung it. 16 found that the flames has fused(熔化) the wires of the doorbell together, causing it to ring. But 17 , the fire had nothing to do with the doorbell wiring at all. It had started in the bathroom, well down the hall. From there, the flames didn’t spread to the nearby 18 , where the children and Sharon were sleeping. 19 , they surprisingly reached the doorbell first, making it ring repeatedly, and 20 Sharon to avoid danger. Sharon believes it happened that way thanks to an angel.
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