如图所示，把重为200N的物体匀速提升2m，不计滑轮、绳子的重力及摩擦，所用拉力F为____N，拉力所做的功为____J．

小强将小明父母离婚的事告诉了班上的很多同学。小明得知后．感到自己在班上无地自容，于是他捏造事实，逢人便说小强偷东西。为此，两人发生争执，进而扭打起来，小强受伤入院。小强和小明的上述行为（   ）

①相互侵犯了对方的隐私权和名誉权

②说明公民在行使权利时不得侵犯他人的姓名权

③既是违法行为，又是违反道德的行为

④都侵犯了对方的人身自由权

注意：1）.每处错误及其修改均仅限一词；
2）.只允许修改10处,多者（从第11处起）不计分。
    More and more foreigners like to come to China. Last Friday our school was invited a foreign teacher in our city give a class to the students of Senior Grade Two. We found his class interested. I learned a lot from him. The teacher had a free talk to us with easy English . He spoke slow so that we could understand him well. Sometimes he repeated what we don't understand. My classmates were all active in the class. To his joy, I understood everything the teacher said. And I was able to ask question in English. This class encouraged me very much. I'm sure that until we keep on practising, it will be easy for us to learn speaking English well.

利用基因工程技术将生长激素基因导入绵羊体内，转基因绵羊生长速率比一般的绵羊提高30%，体型大50%，在基因操作过程中生长激素基因的受体细胞最好采用 （   ）

当前，某些地方的个别官员为了打造所谓的“城市名片”，不惜重金移栽一些南方树种，但因“水土不服”，成活率较低．请你从生物学角度分析，一些南方树种在北方成活率低主要是受以下哪种因素的影响（　　）