问题
单项选择题
1,25-(OH)2D3的生理作用是
A．对血钙血磷无明显影响
B．使血钙降低，血磷升高
C．使血钙血磷均升高
D．使血钙血磷均降低
答案
参考答案：C
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1,25-(OH)2D3的生理作用是
A．对血钙血磷无明显影响
B．使血钙降低，血磷升高
C．使血钙血磷均升高
D．使血钙血磷均降低
参考答案：C
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| Wings of Angel I used to hate myself because I wasn't "normal". Everyone else could play on the monkey bars and ride on a bicycle, but not 1 . I had a severe spinal cord disorder (脊髓病) and I knew I would always be much 2 than others. I hated going to school and I hated people 3 at me. I hated seeing others smiling broadly and standing straight and tall. And most of all, I hated looking in the 4 and seeing an ugly hunchback (驼背). My friends found me 5 because I didn't let others get close to me. I thought I was going to go on like this for the rest of my life 6 Angela appeared. That afternoon, I was sitting by myself in a corner of the school - a spot where no one would 7 me. That's when I first heard her voice. "Hi. Can I sit down?" I raised my head and there she was, with an irresistible smile on her round face. "What are you looking at?" she asked. "Ants." "What are they doing?" "No idea." "I bet they're playing games and making friends. Don't you think so?" That was how our 8 started and it didn't stop. We talked about everything under the sun-the ants, the clouds, my little niche (处境) - until it was sunset. Then suddenly, she saw my 9 . She just stared. My heart sank. What I feared most had happened and I knew for sure she would 10 me now. She stood up, pointed at my back and said, "I know 11 your back is hunched." I closed my eyes like a criminal waiting to be sentenced. I begged in my heart for her to 12 , but she just kept on going. "I know what you've got in there. Do you?" "No," I answered 13 . She bent and whispered in my ears. "Your back is hunched because you've got a pair of wings from the angels." I was 14 . I looked into her eyes and her kindness touched my heart. From that day on, I started to learn to 15 myself because I have the wings of an angel and a kind-hearted friend. | ||||
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