（2019·安徽皖江名校联盟高三第一次联考·孔子时代，儒家比较侧重强调“仁”和“礼”，而汉代儒家比较侧重强调“孝”，并有“汉以孝治天下”之说。据此推知其变化的主要原因是（）

(2013·安徽名校联考Ⅰ)________ some students are not aware of is ________ difficult life can be if they are not devoted to study. (2013·开封高三第一次模考)Not until ________ the Internet ________ that the Chinese sailors were rescued by the European Union Task Force. (2013·乌鲁木齐高三第一次诊断性测验)—Hi, Kathy! Any plans for tonight?—Not yet, TimI ________ where to go for dinner （2019 年浙江省第一次联考）下列项目中,与销售费用属于同一类别会计科目的有（） (2013·开封高三第一次模考)—Did Ann fail in English?—She ________.Don’t you notice that she looks depressed? (2014·安徽两所名校联考)A survey ________ by the UN shows developing countries are particularly attractive to tourists. （2018 年浙江省第一次联考）分时操作系统的基本特点是（） （南京市2009届高三第一次调研考试，英语，22）Everyone in this country enjoys the same right ______ religion, race or sex (2009年合肥市高三第一次教学质量检测)The police tried to get some clues from the suspect，but he remained (2009年合肥市高三第一次教学质量检测)It was the training he had as a young man made him such a good engineer (2013·辽宁五校协作体第一次联考)________ about the man wearing sunglasses during night that he was determined to follow him. (2013·皖南八校第一次联考)He is only too ready to help others, seldom, ________， refusing them when they turn to him. (2013·安徽名校联考Ⅱ)________ nearly all behavior is learned behavior is a basic assumption ________ has been put forward by social scientists 第四届中国绿化博览会创造了绿博会举办以来的四个“第一次”，即第一次在、第一次在、第一次在、第一次在举办（） (2009年合肥市高三第一次教学质量检测)The society today offers the young generation more chances to their talent and skills． (2013·皖南八校第一次联考)A recent survey shows the number of people who shop in stores ________， while far more are shopping online. (2009年合肥市高三第一次教学质量检测)He sighed again and the failure in physics seemed to have completely his confidence． 雏鹅第一次饮水称为（ ），第一次采食称为（ ）。 （福建省龙岩市2011届高三第一次质量检查）— ______you write so well? —By reading and keeping diaries every day. (2009年合肥市高三第一次教学质量检测)When you finish your work，don’t forget to put the tools back where they