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问题 单项选择题

关于营养性巨幼细胞性贫血，叙述正确的是（）

A.由于叶酸和维生素B12缺乏，导致四氢叶酸减少，引起DNA合成减少

B.由于叶酸和维生素B12缺乏，导致四氢叶酸减少，引起成熟红细胞内血红蛋白合成不足

C.由于叶酸和维生素B12缺乏，导致四氢叶酸减少，引起骨髓中有核红细胞“核老浆幼”

D.叶酸和维生素B12缺乏主要影响红细胞系的发育，粒细胞和巨核细胞系发育不受其影响

E.骨髓中红细胞增生活跃，外周血中成熟红细胞破坏增加

答案

参考答案：A

多项选择题

我国目前GCP实施过程中，尚存在以下问题（）。

A.对实施GCP的重要性认识不足；有些药物临床试验设计方案过于简单、缺乏保证实验数据准确收集的严谨措施

B.伦理委员会在药物临床试验中的作用，尚未得到充分发挥；在获得知情同意书的情况下，开始药物临床试验；药物临床试验方案的变更存在随意性

C.病例报告表设计不合理，记录不准确，甚至记录缺失；缺乏对受试者依从性的监控方法，以致试验过程中脱落病例过多；标准操作规程制定滞后

D.药物临床试验质量保证系统不健全；临床试验未按规定保留临床试验的原始记录，或保留时间不足

E.试验用药品管理不规范
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单项选择题

When something goes wrong, it can be very satisfying to say," Well, it’s so-and-so’s fault. "or "I know I’m late, but it’s not my fault ; the car broke down. "It is probably not your fault, but once you form the habit of blaming somebody or something else for a bad situation, you are a loser. You have no power and could do nothing that helps change the situation. However, you can have great power over what happens to you if you stop focusing on whom to blame and start focusing on how to remedy the situation. This is the winner’s key to success.

Winners are great at overcoming problems. For example, if you were late because your car broke down, maybe you need to have your car examined more regularly. Or, you might start to carry along with you the useful phone numbers, so you could call for help when in need. For another ex-ample, if your colleague causes you problems on the job for lack of responsibility or ability, find ways of dealing with his irresponsibility or inability rather than simply blame the person. Ask to work with a different person, or don’t rely on the person. You should accept that the person. Ask to work with a different person, or don’t rely on this person. You should accept that the person is not reliable and find creative ways to work successfully regardless of how your colleague fails to do his job well.

This is what being a winner is all about—creatively using your skills and talents so that you are successful no matter what happens. Winners don’t have fewer problems in their lives ; they have just as many difficult situations to face as anybody else. They are just better at seeing those problems as challenges and opportunities to develop their own talents. So, stop focusing on "whose fault it is". Once you are confident about your power over bad situations, problems are just stepping stones for success.

Which of the following is the best title for the passage().

A.A Winner’s Secret

B.A Winner’s Problem

C.A Winner’s Opportunity

D.A Winner’s Achievement
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