①运动是绝对的、静止是相对的

②一切要以时间、地点、条件为转移

③离开运动谈物质是唯心主义的观点

④要在对立中把握统一，在统一中把握对立

如图所示，质量相同的物体1和2紧靠在一起放在光滑的水平面上，如果它们分别受到水平推力F₁和F₂作用，且F₁＞F₂，则1施于2的作用力大小为（　　）

分析以下两则材料，回答下列问题：

材料一：麻风病是由麻风杆菌引起的一种慢性接触性传染病．要控制和消灭麻风病，必须坚持“预防为主”的方针，贯彻“积极防治，控制传染”的原则，积极发现和控制传染源，对流行地区的儿童、患者家属、接触者给予疫苗接种．

材料二：艾滋病的医学名称为“获得性免疫缺陷综合症”英文缩写AIDS，是一种病死率很高的严重传染病．艾滋是它的英文缩写AIDS的音译．它是由于感染了人类免疫缺陷病毒所引起的、具有一系列复杂症状的综合症．艾滋病病毒侵入人体后破环人体的免疫系统，使人体发生多种难以治愈的感染和肿瘤，最终导致死亡．

（1）麻风病的病原体是____ ，就传染病流行的三个基本环节而言，麻风病患者是____ ．

（2）将患者送入麻风院，在传染病的控制和预防环节中属于____ ；对流行地区的儿童、患者家属、接触者给予疫苗接种属于____ ，接种疫苗后，机体可产生____ ，从而提高对病原体的抵抗力，这种免疫叫____ ．

（3）艾滋病的病原体是____ ．传染病的种类很多，若按传播途径分类，艾滋病属于____ 传染病．

观察图片，回答问题

请回答：

    In Canada you can find dogs, cats, horses etc, in almost every family. These are their pets. People love these pets and pets are their good friends. Before they keep them at their houses, they take them to animal hospitals to give them needles(针) so that they won't carry disease(疾病). They have special animal food shops, though they can get animal food in almost every shop. Some people spend about two hundred Canadian dollars a month on animal food.

    When you visit people's homes, they would be very glad to show you their pets. You will also find almost every family has a bird feeder (喂食器) in their garden. All kinds of birds are welcomed to come and have a good meal. They are free to come and go and nobody can kill any animal in Canada. They have a law to stop people from killing wild(野生的) animals. If you killed an animal, you would be punished(处罚). If an animal happened to get run over(被碾)by a car, people would be very sad about it.

    People in Canada have many reasons to like animals. One of them is: When children grow up, they leave their parents and start their own work and life. Then their parents will feel lonely, but pets can help them. They can be good friends and never leave them alone.