问题
单项选择题
肾素是肾脏产生的内分泌激素之一，绝大部分由下列哪个部位产生（）
A.近曲小管
B.远曲小管
C.系膜细胞
D.球旁细胞
E.内皮细胞
答案
参考答案：D
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肾素是肾脏产生的内分泌激素之一，绝大部分由下列哪个部位产生（）
A.近曲小管
B.远曲小管
C.系膜细胞
D.球旁细胞
E.内皮细胞
参考答案：D
Another secret of animals’ survival is telepathy（心灵感应）. This sense becomes atrophied（衰退） in man, but a(n) 1 thought-communication functions in animals. Elsa, the lioness, frequently 2 when George and I intended to visit her camp, even though it 3 180 miles from our home in Isiolo. On most 4 when we made our irregular visit she was waiting for us. By following the spoor（野兽的足迹），we 5 that she had sometimes walked 50 or 60 miles to meet us. The same thing 6 when I took Elsa’s sisters to Nairobi to be flown to the Rotterdam zoo, Elsa’s zoo. Elsa stayed behind with George in Isiolo 180 miles 7 . He did not know when I was coming back, no person knew. But Elsa knew. On the morning of my 8 she sat down at the entrance and wouldn’t make any 9 until I arrived in the evening. I have known this kind of thought-communication with the animal with whom I’ve lived. When Elsa died, I woke in the night, knowing what had happened, even though I was several miles away. The same thing 10 later with one of Pippa’s cubs. I don’t 11 this sensitivity with my own kind. Feel far more in tune with what is going on when I am in the bush than when I am in London on Nairobi. We don’t know much yet about this telepathy from which gland（腺体） it comes, or how it 12 . But if men could awaken or 13 it in themselves, and then cooperate by trusting each other, 14 fearing and treating one another 15 , the world would be a far better place.
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