单选题从群整体的智力分布来看,智力中下一般是指智商在______之间。
A.80—89
B.90—109
C.110—119
D.120—129
单选题下列哪组实验全部属于《义务教育化学课程标准(2011年版)》规定的基础学生实验( )。
单选题“凡有关国家机密的案件都不是公开审理的案件”,据此,我们可以推出( )。
单选题教育可以“简化”文化,吸取其基本内容:教育可以“净化”文化,清除其不良因素。这体现了教育对文化具有( )。(2014年下半年真题)
单选题初中化学课程内容的选择依据是______。
A.符合学校教学条件
B.符合社会发展的需要
C.符合教师教学的需要
D.符合经济社会条件
单选题Since ancient times, the destructive effects of earthquakes on human lives and property have encouraged the search for reliable methods of earthquake prediction. This challenge remains and modern scientists continue to search for reliable methods to determine the time, place and intensity of individual quakes. One prediction technique involves an analysis of the recurrence rates of earthquakes as indicators of future activity. Earthquakes are concentrated in certain areas of the world which are subject to constant movements of earth's plates and it is in these areas that scientists focus their investigations. This search for pre-earthquake phenomena has received particular attention. In contrast to the ancient Greeks and Romans, who relied on the crying of dogs as a warning sign, modern scientists have focused on physical evidence for a coming earthquake. Evidence of plate strain can be found by measuring relative movements, while chemical changes also offer signals for scientists. Analysis of the changes in magnetic properties and conductivity of rocks provides further data for prediction. The electrical and magnetic properties of crustal(地壳的)rocks are particularly sensitive to strain. The conductivity of crustal rock is determined by the degree to which the rock is soaked with fluid and the electrolytic properties of those fluids. Before large earthquakes, small fractures develop in rocks, which change the quantity of fluid present. These changes can be measured and provide useful data. However, similar changes in the fluid, bearing capacity of rock can occur as a result of other factors such as changes in the water table, and therefore this technique is not entirely reliable. The ancient believe that the behavior of birds, cats and dogs provides evidence of inevitable earthquakes has recently been attended as a result of tests carried out in California. It has been shown that changes take place in the metabolic(新陈代谢的)rates of these animals correlate with subsequent seismic activity. It is assumed that the animals are sensitive to the seismic waves which precede major quakes. In zones where earthquakes are known to occur, improved construction techniques can significantly reduce the effects of seismic waves. If more accurate information regarding the time and intensity were available, governments could take even more effective measures to reduce the impact on human life, if, however, an entirely accurate prediction technique became available, there would be significant social and political implications.
单选题下列关于教师与学生之间法律关系的说法,不正确的是()。
单选题《中华人民共和国未成年人保护法》所称未成年人是指未满()周岁的公民。
单选题西方音乐最早传入中国的途径是______。
A.学堂乐歌
B.铜管乐队
C.专业音乐教育
D.传教
单选题“五岳”中的南岳指的是()。
单选题下列不属于世界三大数学家的是( )。
单选题运用下列谱例的音乐教学体系是()。
单选题教师要具有符合时代特征的学生观,这就要求教师正确理解学生全面发展与个性发展的关系,全体发展与个体发展关系以及()。
单选题“长夜难明赤县天,百年魔怪舞翩跹,人民五亿不团圆。一唱雄鸡天下白,万方乐奏有于阗,诗人兴会更无前。”这是毛泽东的一首诗,诗中“一唱雄鸡天下白”是指()。
单选题下列人物中,相传曾整理《诗》《书》等古代典籍,并删修《春秋》的是______。
单选题下列选项对英国化学家玻意耳的成就描述错误的是()。
单选题游泳时发生肌肉痉挛,首先措施是______。
A.冷敷
B.按摩
C.制动
D.向相反方向牵引
单选题在美术欣赏教学时,教师要求学生介绍自己课前收集的名家美术作品图片。此法的意图是( )。
单选题孔子说:“其身正,不令而行;其身不正,虽令不从。”这说明教师应该具备以下哪种素质( )
单选题小明急需查一本书中的内容,按最佳方案,他第一个应选择的方式是()。
