单选题“亲其师而信其道”反映了()对学生学习的影响。

单选题如果米拉是考古专家．又考察过20座以上的埃及金字塔，则他一定是埃及人。这个断定可根据以下哪项得出?()

单选题有人说，凡是知识都是科学的，凡是科学都是无颜色的，并且在追求知识时，我们要知道没有颜色的态度，假使这种说法不随意扩大，我也认同，但我们要知道，只要是一个活生生的人，便必然有颜色。对无颜色知识的追求，必定潜伏着一种有颜色的力量，在后面或底层加以推动。这一推动力量，不仅决定一个人追求知识的方向与成果，也决定一个人对知识是否真诚。 这段文字中“有颜色的力量”指的是(　 　)。

单选题下面地貌由燕山期花岗岩组成，左图为飞来峰，其上的飞来石如天外来客(右图)，读图回答问题。

单选题在某次地震发生时，甲地为震中区，乙地为地震波及地区，这两个地区的震级和烈度的关系是()。

单选题下列关于二叉树周游的叙述中，正确的是______。 A.若一个结点是某二叉树对称序的最后一个结点，则它必是该二叉树前序的最后一个结点 B.若一个结点是某二叉树前序的最后一个结点，则它必是该二叉树对称序的最后一个结点 C.若一个树叶是某二叉树对称序的最后一个结点，则它必是该二叉树前序的最后一个结点 D.若一个树叶是某二叉树前序的最后一个结点，则它必是该二叉树对称序的最后一个结点

单选题Why didn’t her mother tell her that she was anonymous giver of gardenia?

单选题西欧有一句名谚：“中国人的头，阿拉伯人的口，法兰西人的手。”结合对古代科技史的理解，下列说法不正确的是(　　)。

单选题刘老师在导人《三国演义》这一节内容的教学时，先给同学出一个谜语：“凿壁借光，打一人名。”再由谜底“孔明”引入三国历史的学习。刘老师采用的这种课堂导入方法是( )

单选题秦朝时日常文书来往通用的字体是()。

单选题某有色溶液当浓度为c时，其最大吸收波长为450 nm；若其他条件不变而浓度为2c时，其最大吸收波长为( )nm。

单选题《幼儿园教育指导纲要(试行)》中提到的五个领域，每个领域都可以提炼出一个关键的能力，其中艺术领域的关键能力是（　　）。

单选题 If the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21st century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however, has recently been suggested by an American scientist, Professor Carl Sagan. Sagan believes that before the earth's resources are completely exhausted it will be possible to change the atmosphere of Venus and so create a new world almost as large as earth itself. The difficulty is that Venus is much hotter than the earth and there is only a tiny amount of water there. Sagan proposes that algae organisms, which can live in extremely hot or cold atmospheres and at the same time produce oxygen, should be bred in conditions similar to those on Venus. As soon as this has been done, the algae will be placed in small rockets. Spaceships will then fly to Venus and fire the rockets into the atmosphere. In a fairly short time, the algae will break down the car- bon dioxide into oxygen and carbon. When the algae have done their work, the atmosphere will become cooler, but before man can set foot on Venus it will be necessary for the oxygen to produce rain. The surface of the planet will still be too hot for men to land on it but the rain will eventually fall and in a few years some- thing like earth will be reproduced on Venus.

单选题能增强幼儿对图形、数量的理解，获得对称、厚薄、宽窄、上下等概念的创造性游戏是()。

单选题艾宾浩斯遗忘曲线反映的遗忘规律是（　）。

单选题接种乙肝疫苗能预防乙肝，其原因是( )。

单选题蜘蛛结网行为的决定性因素是( )。

单选题在音乐学习过程中，提倡从幼年时期开始，运用民族的、地方的语言，帮助儿童形成特定的音乐思维方式和语法结构，使得民族音乐文化传承的教育理念是( )。

单选题“己欲立而立仁，己欲达而达人”告诉教师，对待同事和学生要做到( )。

单选题There is every sign that new Asian immigrants are willing to______with Americans.