单选题中国古代记载物理学知识，其中包括杠杆原理和浮力理论、声学和光学知识的著作是()。

单选题In ordinary conversations, participants are expected, first of all, to______, otherwise, communication would break down.

单选题根据1993年颁发的《中国教育改革和发展纲要》的相关规定，小学实行（　）。

单选题以下哪首歌曲是山西地区的民歌()。

单选题教师以“表美”“道美”“风格美”作为教育的方式，这种德育模式属于( )。

单选题学生学习《望庐山瀑布》这首古诗时，头脑中呈现诗句所描绘的相关形象，这种心理活动属于( )。(2013年上半年真题)

单选题奠定了教育心理学发展基础，确立了西方教育心理学的名称和体系的著作——西方第一部《教育心理学》，其作者是美国心理学家______。 A.冯特 B.斯金纳 C.杜威 D.桑代克

单选题一个人在解决问题时能触类旁通，说明这个人的思维具有()。

单选题美国“童话之父”弗兰克·鲍姆的代表作是（　　）

单选题用表面涂有绝缘层的四根相同导线分别绕成闭合线圈。其中，a为2匝圆形线圈，b、c为导线交叉的8字形圆线圈，d是两个分别由半根导线绕成的闭合圆形线圈且捆绑在一起。现将它们按图8所示从同一高度同时由静止释放。它们穿过水平向里的匀强磁场，最后落到水平地面，则最先落地的线圈是()。

单选题教学工作的中心环节是______。 A.备课 B.上课 C.课外辅导 D.学习成绩的检查与评定

单选题观察者在不暴露自己的研究者身份的前提下，不同程度地参与研究对象的活动中，从内部观察研究对象的行为表现和活动过程是（　　）。

单选题曹操的“何以解忧，唯有杜康”诗句中的“杜康”，是指______。

单选题中国古代有这样一类官员，他们充当皇帝私人顾问，其权力来自与皇帝的私人关系。属于这类官员的有( )。

单选题It is hard to predict how science is going to turn out, and if it is really good science, it is impossible to predict. If the things to be found are actually new, they are by definition unknown in advance. You cannot make choices in this matter. You either have science or you don' t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly useful bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature. Indeed, I regard this as the major discovery of the past hundred years of biology. It is, in its way, an illuminating piece of news. It would have amazed the brightest minds of the 18th century Enlightenment to be told by any of us how little we know and how bewildering seems the way ahead. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problem, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are depressed. It is not so bad being ignorant if you are totally ignorant; the hard thing is knowing in some detail the reality of ignorance, the worst spots and here and there the not-so-bad spots, but no true light at the end of the tunnel nor even any tunnels that can yet be trusted. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can't be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can't think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

单选题对小班幼儿进行常规教育时，下列语言描述最合适的是()。

单选题童话( )塑造了一个永葆童真、拒绝长大的人物形象，因此该童话也被翻译为《永不长大的孩子》。

单选题______是保证幼儿各方面健康发展的前提。 A.幼儿适应环境和抗疾病的能力 B.良好的生活习惯 C.参加体育活动的兴趣 D.促进幼儿身体正常发育

单选题At a higher level of writing, which of the following cognitive, skills should NOT encouraged?

单选题评价神经肌肉兴奋性的简易指标是______。 A.神经冲动 B.阈强度 C.肌肉力量 D.肌纤维类型