原核生物蛋白质合成时,新生肽链的N-末端氨基酸是()。 A.丝氨酸 B.苏氨酸 C.

题型:单项选择题

问题:

原核生物蛋白质合成时,新生肽链的N-末端氨基酸是()。

A.丝氨酸

B.苏氨酸

C.脯氨酸

D.谷氨酰胺

E.甲酰蛋氨酸

考点:自学考试医学类生物化学真题2010年04月
题型:单项选择题

I lost my sight when I was four years old by falling off a box car in a freight yard in Atlantic City and landing on my head. Now I am thirty-two. I can vaguely remember the brightness of sunshine and what color red is. It would be wonderful to see again, but a disaster can do strange things to people. It occurred to me the other day that I might not have come to love life as I do if I hadn’t been blind. I believe in life now. I am not so sure that I would have believed in it so deeply, otherwise. I don’t mean that I would prefer to go without my eyes. I simply mean that the loss of them made me appreciate the more what I had left.
Life, I believe, asks a continuous series of adjustments to reality. The more readily a person is able to make these adjustments, the more meaningful his own private world becomes. The adjustment is never easy. I felt helpless and afraid. But I was lucky. My parents and my teachers saw something in me--a potential to live, you might call it--which I didn’t see, and they made me want to fight it out with blindness.
The hardest lesson I had to learn was to believe in myself. That was basic, If I hadn’t been able to do that, I would have collapsed and become a chair rocker on the front perch for the rest of my life. When I say belief in myself I am not talking about simply the kind of self-confidence that helps me down an unfamiliar staircase alone. That is part of it. But I mean something bigger than that: an assurance that I am, despite imperfections, a real, positive person; that somewhere in the sweeping, intricate pattern of people there is a special place where I can make myself fit.
It took me years to discover and strengthen this assurance. It had to start with the most elementary things. Once a man gave me an indoor baseball. I thought he was making fun of me and I was hurt. "I can’t use this," I said. "Take it with you," he urged me, "and roll it around." The words stuck in my head. "Roll it around!" By rolling the ball I could hear where it went. This gave me an idea how to achieve a goal I had thought impossible: playing baseball. At Philadelphia’s Overbrook School for the Blind I invented a successful variation of baseball. We called it ground ball.

By "a chair rocker on the front perch", the writer refers to a person who ______.
A. sits on a rocking chair and enjoys life.
B. is paralyzed and cannot move
C. has lost the will to struggle against difficulties in life.
D. never leaves his home.

All my life I have set ahead of me a series of goals and then tried to reach them, one at a time. I had to learn my limitations. It was no good to try for something I knew at the start was wildly out of reach because that only invited the bitterness of failure. I would fail sometimes anyway but on average I made progress.

题型:单项选择题

生产管理负责人应当具有至少三年从事()的实践经验,其中至少(),接受过与所生产产品相关的专业知识培训。

题型:单项选择题

(2010)房地产经纪机构购买业务保险,属于风险管理的()方法。

A.损失控制

B.内部风险控制

C.损失融资

D.外部风险控制

题型:单项选择题

图3是民国时期旅顺学生刘成汉的小学毕业证书。他毕业的时间应该是公元()

A.1946年

B.1947年

C.1948年

D.1949年

题型:单项选择题

甲、乙、丙、丁四人合伙设立一粮油加工企业,甲出资1万元,乙负责购买机器,丙提供自家闲置的房屋作为厂房,丁因为懂加工技术,由其负责日常的经营和维修工作。在企业创建的第一年,企业效益很好,共赢利4万元,甲、乙、丙、丁四人各分得1万元。然而市场变化莫测,粮油加工产品滞销,该合伙企业发生了一系列变故。若丙退伙时该企业亏损4万元,丙分担了1万元,而甲、乙、丁三人仍无力偿还剩余3万元债务,则应如何处理()

A.因丙已经退伙,因此对剩余3万元债务不再承担清偿责任

B.丙虽已退伙,仍需对3万元债务负连带责任

C.丙虽已退伙,仍需对3万元债务按实际盈余比例承担责任

D.丙虽已退伙,仍需以其在合伙企业所获利润偿付合伙企业债务

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