我国在世界上最早的一篇专门论述教育教学问题的论著是( )。
The undersea world is very beautiful. Now more and more people want to dive in the water to find the secrets there. Scuba diving is a new sport today. It can take you into a wonderful undersea world. You will find many strange animals in the sea. Some are as large as a school bus. Many sea animals give out light in the dark and some have sharp teeth. During the day, there is enough light. Here, under the sea, everything is blue and green. When fish swim nearby, you can catch them with your hands. When you have bottles of air on your back, you can stay in deep water for a long time. However, you can't dive too deep. And you must be very careful when you dive in deed water. The deep sea is not an easy place to live in. It's cold, and it's dark, too. The deeper it is, the less sunlight there is. At about 3, 000 feet, there is no light at all. It is dark in the sea. Many fishes have no eyes. Some have big eyes. A few have eyes on one side. Besides (除了) the cold and darkness, deep -sea animals face a third danger - other animals. Animals eat! They must find food to eat. Many animals eat plants. However, some animals eat meat. This means these sea animals have two big jobs. They need to find animals as food, and they have to try not to become other animal's, meal.
现有4个数,其初始顺序为12、25、96、32,要求从大到小进行排序,请根据简单选择排序法
心理学研究表明,适度焦虑有益于学习或工作。
《中华人民共和国宪法》规定,中华人民共和国劳动者有休息的权利。此规定属于法律规范中的授权性法律规范。
下列选项中,不属于初中阶段的写作目标的是( )。
在教材的处理方式上,新旧两种美术教材观的不同之处在于旧教材观是用教材,新教材观是教教材。
如图所示,AC是上端带定滑轮的固定竖直杆,质量不计的轻杆BC一端通过铰链固定在C点,另一端B悬挂一重为G的重物,且B端系有一根轻绳并绕过定滑轮A,用力F拉绳,开始时∠BCA>90°,现使∠BCA缓慢变小,直到杆BC接近竖直杆AC,此过程中,以下分析正确的是()
甲同学活泼好动、能说会道、反应灵活、爱好交际,上课时爱搞小动作、不注意听讲。乙同学安静稳重、沉默寡言、喜欢沉思、情绪不易外露、自制力强、不好交际,上课时不爱发言
正确的应急处理踝关节扭伤的方法是______
“集体教学只能因集体之材施集体之教,不能因个别之材施个别之教。因此,必须限制集体人数
教师喜欢活泼开朗、热情大方的多血质类型的学生,因此学生的气质有好坏之分。
根据《中华人民共和国教师法》的规定,对有重大贡献的教师,依照国家有关规定授予荣誉称号。
某学生在研究事物时,容易受他人态度的影响,这位学生的认知方式很可能属于______。
队列练习,口令“立正”的要领:足跟并拢,足尖外分,两足成______
列举黄自的音乐作品。
终身教育强调人的一生应该是终身学习、终身发展的一生。
一个测验能测出它所要测量的属性或特点的程度,称为测量的______。
教师的道德修养,只有在______中才能得到不断充实、提高和完善。
关于热力学定律,下列说法正确的是( )。
