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【单选题】
The remarkable progress of science and technology in the 20th century has brought enormous benefits to humankind. Long and healthy lives, economic prosperity and a pleasant and convenient living environment have resulted from technological progress based on advances in scientific knowledge. This progress will continue or may even accelerate in the future, because both the number of scientists and their activities are expanding throughout the world. We may expect, therefore, that science and technology will continue to contribute to the development of human society. At the same time, rapid scientific advances may raise some difficult problems. First of all, the disparity in scientific knowledge between those in scientific and technical professions and those in other areas will continuously expand. This may create a communications gap between the two groups that could affect obtaining public consent on important issues, such as the use of genetically engineered plants or human embryonic stem cells. Secondly, the 21st century will be characterized by a knowledge-based society and a knowledge of science will be required for many professions. Those who lack scientific knowledge will have fewer opportunities for good jobs. Thirdly, the enormous increase in scientific information will become a burden for children who must study science. Already young people seem to be losing interest in science, and this trend may increase in the future. Over the past several years, enrollment in high-school physics courses in Japan has been decreasing, which suggests that many young people are losing interest in physics or avoiding subjects that require diligent study. Finally, scientific research in the next century will require increasing levels of public investment because sophisticated research is usually expensive. If the public loses interest in, science or does not understand the importance of research, it will become difficult for scientists to obtain sufficient financial support. Because of these considerations, I think that we need to carefully review present science education at different levels and to improve it in order to meet the expected rapid progress of science in the 21st century. At the level of primary education, the' most important task is to stimulate children's interest in nature. Naive surprise at the wonders of nature will hopefully lead to a later interest in science. During their secondary education, students must learn logic and the principles of natural phenomena. They will gradually separate into groups of those who like and those who dislike science. It will be difficult to provide the latter students with the scientific basics that would be useful throughout their lives. This is also the case in university education. It is becoming a goal of general university education to give students who are not majoring in natural science and engineering some level of scientific literacy. In the future, all citizens, especially those expected to lead diverse areas of society should have a sound basis for understanding the progress of science. Because the pace of progress will accelerate further, continuing science education for the public is also of great importance. According to the passage, the fact that young people seem to be losing interest in science ______.
A.
may cause the lack of scientists throughout the world in the century to come
B.
is mainly due to the explosion of scientific information
C.
may increase the communications gap between young people and scientists
D.
may hinder the development of human society
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【判断题】统计指标及其数值可以当做总体。 ( )
A.
正确
B.
错误
【单选题】挽救远缘杂交,进行胚胎培养取材关键时期是
A.
子叶期
B.
球形胚至鱼雷形
C.
心型胚
D.
成熟胚
【单选题】下列哪种现象不是种内关系和种间关系都具有的类型()。
A.
化感作用
B.
竞争
C.
互利共生
D.
利他行为
【单选题】有一些控制可以用于限制外部使用者未经授权访问会计信息系统。以下哪项不是可接受的访问控制()。
A.
职责分离
B.
密码
C.
用户ID和个人档案
D.
数据加密
【单选题】下列不是关系的特征是( )?
A.
同一个表中列名称唯一
B.
任意一列所有数据类型一致
C.
一列可兼容多种数据类型
D.
行不重复
【判断题】财产清查所发现的差异及对差异的处理,都应在账簿上予以反映,必须通过账簿记录的调整,使之达到账实相符
A.
正确
B.
错误
【单选题】右图表示不同概念之间的类别关系。下列不符合这种关系的是()
A.
I生态系统稳定性、Ⅱ抵抗力稳定性、Ⅲ恢复力稳定性
B.
I生态系统、Ⅱ生物群落、Ⅲ无机环境
C.
I生态系统的信息、Ⅱ行为信息、Ⅲ物理信息
D.
I生态系统、Ⅱ种群、Ⅲ群落
【单选题】契约性是指医患关系带有契约的性质,只是类似一种契约关系,医患关系与一般的契约关系有所不同。下列表明医患关系与一般的契约关系有所不同的是()。
A.
医患关系一般不是从明确地协商定立某种契约开始
B.
医患关系不是一种在契约生效期间的“短期行为”
C.
医患关系寻求一种长期稳定的对患者全面负责的关系
D.
医患关系中的契约概念包含深刻的伦理学含义
E.
以上都是
【判断题】对于财产清查中所发现的各种差异以及对这些差异的处理,都应当及时进行账务上的处理,以保证账实相符。( )
A.
正确
B.
错误
【单选题】湖泊中的滨螺以多种藻类为食。下图为藻类种数与滨螺密度的关系。下列分析不正确的是 [     ]
A.
各种藻类之间的关系为竞争
B.
滨螺密度过大时,藻类种数明显减少
C.
若没有滨螺,藻类多样性会增加
D.
中等密度的滨螺可提高该生态系统营养结构的复杂程度
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