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When I come across a good essay in the newspaper, I often cut it and keep it. But just as I am about to do so, I find the article on the opposite side of the page is as much interesting. It may be a discussion about a way to keep in good health, or advice about how to behave and conduct oneself in society. If I cut the front essay, the other one on the back of the page will suffer damage, leaving out half of it or the text will be kept but missing the subject. As a result, my scissors would stop before they start, or only halfway done when I find out the regrettable consequence. Sometimes, two things are to be done at the same time, both deserving your attention. You can only take up one of them — the other has to wait or even be given up. But you know the future is unknown — the changed situation may not allow you to do what is left behind. Thus, you are caught in a fix and you may feel sad. How come that nice opportunities and brilliant ideas should gather around all at once? It may happen that your life changes dramatically on your preference of one alternative over the other. In fact, that is what life is like: we are often faced with two choices that are equally desirable, just like what happens during newspaper cutting. It often occurs that our attention is drawn to one thing only after we are engaged in another. The latter may be more important than the former and thus giving rise to a divided mind. I still remember a philosopher’s remarks: “When one door shuts, another one opens in life .” So a casual or passive choice may not necessarily be a bad one. Whatever we do in our lifetime, wherever life’s storm tosses(抛)us, there must be something we can achieve, some shore we can land on that opens up new vistas(景色)for us. Don’t forget there is always an alternative door open for everyone. While the first door is closed, there must be another that is open for you. In fact, that is what life is like: we are often faced with two choices that are equally desirable, just like what happens during newspaper cutting. It often occurs that our attention is drawn to one thing only after we are engaged in another. The latter may be more important than the former and thus giving rise to a divided mind. I still remember a philosopher’s remarks: “When one door shuts, another one opens in life .” So a casual or passive choice may not necessarily be a bad one. Whatever we do in our lifetime, wherever life’s storm tosses(抛)us, there must be something we can achieve, some shore we can land on that opens up new vistas(景色)for us. Don’t forget there is always an alternative door open for everyone. While the first door is closed, there must be another that is open for you.
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【简答题】On a PC, the rom is called the BIOS. and what does the BIOS instruction do?
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A.
是一种多顺反子
B.
是mRNA的前体
C.
是mRNA和多个核蛋白体的聚合物
D.
是mRNA与核蛋白体小亚基的结合物
E.
只存在于原核生物中,真核生物不具有这种现象
【单选题】关于核小体的描述,下列说法不正确的是( )。
A.
是染色体的基本结构单位,每条染色体的核小体数目是相同的
B.
每个核小体单位包含200bp左右的DNA和一个组蛋白八聚体
C.
连接部有60bp的连接DNA片段
D.
多个核小体紧密连接成串珠状结构
【单选题】关于多聚核蛋白体的描述,正确的是
A.
结合了核蛋白体的几条mRNA链聚在一起
B.
一个核蛋白体连续翻译多肽链
C.
一条mRNA链上结合多个核蛋白体
D.
mRNA、核蛋白体和多肽链的复合体
E.
DNA、mRNA、核蛋白体和多肽链的复合体
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A.
医生在紧急情况下进行了手术,采取了干涉权,不侵犯患者的知情权。
B.
本案不符合干涉权适用的条件
C.
本案体现了患者的知情同意权应该退居生命权之后
D.
本案说明知情同意权与特殊干预权互为矛盾
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A.
两年一定
B.
一年一定
C.
五年一定
D.
十年一定
【多选题】下列关于抗菌药的作用机制,描述正确的有()
A.
青霉素抑制转肽酶阻碍细菌细胞壁的合成
B.
四环素抑制蛋白质合成的各个环节
C.
万古霉素抑制细菌细胞壁的合成
D.
氯霉素与核糖体50S亚基结合抑制蛋白质的合成
E.
喹诺酮类抑制细菌DNA为模板的RNA多聚酶
【判断题】对自己满意的购买,容易产生重复购买或扩大购买行为。
A.
正确
B.
错误
【单选题】关于多聚核蛋白体的描述,正确的是()。
A.
结合了核蛋白体的几条mRNA链聚在一起
B.
一个核蛋白体连续翻译多肽链
C.
一条mRNA链上结合多个核蛋白体
D.
mRNA、核蛋白体和多肽链的复合体
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