问题
单项选择题
有关ACTH的叙述，正确的是
A．血浆ACTH无脉冲式分泌
B．血浆ACTH检测无助于原发和继发肾皮亢的鉴别诊断
C．血浆ACTH分泌功能检测不用结合血皮质醇测定
D．血浆ACTH极不稳定，放置室温易分解
E．血浆ACTH由下丘脑分泌
答案
参考答案：D
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有关ACTH的叙述，正确的是
A．血浆ACTH无脉冲式分泌
B．血浆ACTH检测无助于原发和继发肾皮亢的鉴别诊断
C．血浆ACTH分泌功能检测不用结合血皮质醇测定
D．血浆ACTH极不稳定，放置室温易分解
E．血浆ACTH由下丘脑分泌
参考答案：D
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| "I'm too old and it's too late," which played over and over in my mind. I was 1 and exhausted after ending my marriage and my law career at the same time. 2 my ambition to become a writer, I 3 my ability to succeed as one. Had I wasted years going 4 the wrong goals? I was at a low point 5 the voice on the radio began 6 the story of Grandma Moses. Ann Mary Moses left home at thirteen, bore ten children and worked hard to raise the five who 7 . Struggling to make a living on poor farms, she managed to 8 a bit of beauty for herself by embroidering (绣花) on cloth. At seventy-eight, her fingers became 9 awkward to hold a needle. 10 give in to aging, she went out to an empty room and began to 11 . For the first two years, these paintings were either given away or sold 12 a little money. But at the age of seventy-nine, she was "discovered" by the 13 world-and the rest is 14 . She went on to produce more than two thousand paintings, 15 her book illustrations (插图) for It was the Night before Christmas were completed in her one-hundredth year! 16 I listened to the radio, my 17 changed. If Grandma Moses 18 begin a new career and succeed after eighty, my life still had 19 after thirty. Before the program ended, I rushed to my computer to work on the novel I'd nearly 20 . It was published eight months later. | ||||
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