问题
单项选择题
有关尿干化学检测原理，尿胆原测定用（）
A．偶氮偶联法
B．马来酐试剂
C．葡萄糖氧化酶法
D．四甲基联苯胺法
E．特异性酯酶法
答案
参考答案：A
解析：
偶氮法是尿胆原与旷甲氨基苯重氮化硼酸盐发生偶联反应。呈色深浅与尿胆原含量成正比。
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有关尿干化学检测原理，尿胆原测定用（）
A．偶氮偶联法
B．马来酐试剂
C．葡萄糖氧化酶法
D．四甲基联苯胺法
E．特异性酯酶法
参考答案：A
解析：
偶氮法是尿胆原与旷甲氨基苯重氮化硼酸盐发生偶联反应。呈色深浅与尿胆原含量成正比。
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| I grew up poor-living with my wonderful mother. We had little money, but plenty oflove and attention. I was 1 and energetic. I understood that no matter how poor a person was, he could still afford a dream. My dream was athletics. When I was sixteen, I started playing baseball. I could throw a ninety-mile-per- hour fastball and 2 anything that moved on the field. I was also 3 : my high school coach was John, who believed in me and, more importantly, taught me how to believe in myself. He 4 me the difference between having a dream and remaining true to that dream. One unusual 5 with Coach John changed my life forever. A friend helped me to find a summer job. This meant a chance for money in my pocket for a new bike, new clothes and the 6 of saving for a house for my mother. Then I realized I would have to 7 up summer baseball and that meant I would have to tell John I wouldn't be playing. When I told John, he was 8 as I expected him to be. "You have your whole life to work," he said. "You don't have too many playing days in your life. You can't afford to waste them." I stood before him with my head 9 , trying to think of the 10 that would explain to him why my dream of buying my mom a house and having money in my pocket was worth facing his disappointment in me. "How much are you going to make at this job, son?" he asked. "3.5 dollars an hour," I replied. "Well," he asked, "is $ 3.5 an hour the price of a dream?" That simple question made me understand the difference between 11 something right now and having a goal. I decided myself to play sports that summer and within the year I was taken on by the Pittsburgh Pirates to play baseball, and was 12 a $ 20 000 contact (agreement). In the same year, I bought my mother the house of my dream! | ||||
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