问题
单项选择题 A1型题
二巯基丙磺酸钠治疗汞中毒可能机理是保护（）。
A.蛋白质的巯基
B.蛋白质的羟基
C.蛋白质的氨基
D.蛋白质的羧基
E.蛋白质的磷酸基
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
二巯基丙磺酸钠治疗汞中毒可能机理是保护（）。
A.蛋白质的巯基
B.蛋白质的羟基
C.蛋白质的氨基
D.蛋白质的羧基
E.蛋白质的磷酸基
参考答案：A
One winter during college in New York, I took an 8 am history class to fulfill a requirement. It was 36 to get up for that class, but every morning I would 37 the cold winds and went to the lecture. The professor for the class would step 38 into the room. He was terribly nervous about the class and always fixed his eyes on his book, never 39 us. I felt that I needed to do something to 40 the boredom, so I tried to find something in his lecture to ask him, 41 me to pay attention rather than letting my eyes close. The first time 42 I raised my hand, he was surprised but was obviously 43 to have a question to answer. I continued to do this every day. The professor seemed to become a bit more 44 and some other students even joined in. In fact, his answers were always 45. In this way, I learned quite a lot and realized the professor was indeed a/an 46 in his field. On the last day of class we 47 our books and headed out. The professor stepped directly in front of me, with obvious 48, putting out his hand. He said, “49 you for making my class so interesting,” shaking my hand and smiling. I was so 50. To me, it had been a pleasant way to 51 the time in his lesson. I had no idea that my 52 had any effect on him or the others at all. That 53 has stayed with me for 30 years. I don’t 54 the fact I learned in his class, but I’ll never forget the professor who taught me a lesson about the 55 of acts of kindness, indeed or not.
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