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【单选题】
How often one hears children wishing they were grown up, and old people wishing they were young again. Each age has its pleasures and its pains, and the happiest is the one who enjoys what each age gives him without wasting his time in useless regrets. Childhood is a time when there are few responsibilities to make life difficult. If a child had good parents, he is fed, looked after and loved, whatever he may do. In addition, life is always presenting new things to the child things that have lost their interest for older people because they are too well known. A child finds pleasure in playing in the rain, or in the snow. His first visit to the seaside is a marvelous(非凡的) adventure. But a child has his pains., he is not so free to do as he wishes as he thinks older people are he is continually being told not to do things, or being punished for what he has done wrong. His life is therefore not perfectly happy. When the young man starts to earn his own loving, he becomes free from the discipline (纪律) of school and parents but at the same time he forced to accept responsibilities (责任). He can no longer expect others to pay for his food, his cloths, and his room, but has to work if he wants to live comfortably. If he spends most of his time playing ahout in the way that he used to as a child, he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If, however, he works hard, keeps out of trouble and has good health, he can have the real happiness of seeing himself make steady(稳定的) progress in his job and of building up for himself his own position in society. Old age has always been thought of as the worst age to be but it is not necessary for the old to be unhappy. With old age should come wisdom and the ability to help others with ad vice wisely given. The old can have the joy of seeing their children making progress in life they can watch their grandchildren growing up around them and, perhaps best of all, they can, if their life has been a useful one, feeling the happiness of having come through the bat tie of life safely and of having reached. a time when they can lie back and rest, leaving others to continue the fight. The title of the passage is______.
A.
Each Age
B.
Growing Pains and Happiness
C.
The Best Age to Be
D.
The Happiest People to Be
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举一反三
【单选题】视觉反射中枢位于
A.
顶盖前区
B.
中脑上丘
C.
外侧膝状体
D.
角回
E.
枕叶距状沟附近
【单选题】下图是一个存储器的简单模型。围绕该存储器模型,回答下列问题。 下列说法不正确的是_____。
A.
该存储器可存取4个4位的存储单元
B.
该存储器其中的一个存储单元的内容是1010
C.
该存储器既可读出,又可写入
D.
该存储器的地址码分别是00,01,10和11
【单选题】视觉反射中枢位于
A.
上丘
B.
上丘脑
C.
下丘
D.
下丘脑
【单选题】下图是一个存储器的简单模型。围绕该存储器模型,回答问题。 下列说法不正确的是
A.
该存储器可存取4个4位的存储单元
B.
该存储器其中的一个存储单元的内容是1010
C.
该存储器既可读出,又可写入
D.
该存储器的地址码分别是00,01,10和11
【单选题】一直以来 , 人体干细胞都被认为是从不成熟细胞发展为专门的成熟细胞 , 生长过程不可逆转。然而 , 新的科学研究发现 , 专门的成熟细胞可以重新编程 , 成为未成熟的细胞。科学家通过对人体细胞的重新编程 , 创造了诊断和治疗疾病的新方法。这主要表明 ( ) 1意识活动的主动性和创造性可以揭示自然之谜 2实践具有社会历史性和客观物质性的特征 3人们可以利用规律改造世界 , 造福人类 4规律一旦被科学...
A.
①②
B.
①③
C.
②④
D.
③④
【单选题】2003 年,突如其来的 SARS 疫情袭击了中国,并在一段时间里造成了国民的普遍恐慌。为了有效地应对 SARS ,中国政府出台了《突发公共卫生事件应急反应条例》,在全国范围内成立了防非典指挥部。国家重点科研院所和实验室启动了 SARS 研究项目。全国各级疾控中心迅速开展了相应的流行病学调查工作。经过全国人民的共同努力, SARS 最终得到了有效的控制。您认为中国能在较短的时间内有效控制 SARS...
A.
迅速及时地开展了 SARS 相关研究
B.
实现了对 SARS 传染源的有效控制
C.
建立了高效率的 SARS 防控组织
D.
对人员进行了快速培训
E.
制定和实施了全方位的 SARS 防治综合策略和措施
【单选题】视觉反射中枢位于
A.
上丘
B.
下丘
C.
内侧膝状体
D.
外侧膝状体
E.
丘脑腹后核
【单选题】下面关于主存储器(简称主存)的叙述中,错误的是
A.
主存是一种动态随机存取存储器
B.
当前PC机主存容量一般在百兆字节以上
C.
主存的基本编址单位是字节
D.
主存每次读出或写入一个字节
【单选题】在2003年,突如其来的SARS疫情袭击了我国,并在一段时间内造成了我们国民的普遍恐慌。为了有效的应对SARS,我国政府出台了《突发公共卫生事件应急反应条例》,在全国范围内成立了防非典指挥部,国家重点科研院所和实验室启动的SARS研究项目,全国各级疾控中心迅速开展了相应的流行病学调查工作。经过全国人民的共同努力,SARS最终得到了有效控制。我国能在较短时间内有效控制SARS的最为关键原因是
A.
迅速而及时地开展了SARS的相关研究,
B.
实现了对SARS传染源的有效控制,
C.
实现了高效率的SARS防控组织
D.
对人员进行快速培训,
E.
制定和实施的全方位的SARS防治的综合策略和措施,
【单选题】2003 年,突如其来的 SARS 疫情袭击了中国,并在一段时间里造成了国民的普遍恐慌。为了有效地应对 SARS ,中国政府出台了《突发公共卫生事件应急反应条例》,在全国范围内成立了防非典指挥部。国家重点科研院所和实验室启动了 SARS 研究项目。全国各级疾控中心迅速开展了相应的流行病学调查工作。经过全国人民的共同努力, SARS 最终得到了有效的控制。您认为中国能在较短的时间内有效控制 SARS...
A.
对人员进行了快速培训
B.
制定和实施了全方位的SARS防治综合策略和措施
C.
迅速及时开展了SARS相关研究
D.
实现了对SARS传染源的有效控制
E.
建立了高效率的SARS防控系统
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