为了探讨家庭教育与儿童身心发展之间的关系，某学说提出了“家庭教育方式与儿童身心发展相关”的研究假设，这种假设属于

设来自总体的简单随机样本，记则下列结论中不正确的是（）.

某公司进行办公室装修，若甲乙两个装修公司合做，需10周完成，工时费为100万甲公司单独做6周后由乙公司接着做18周完成，工时费为96万元，甲公司每周的工时（）

Professor Smith is also the _______ of the international program office. If you have any problem when you study here,you may go to him for help.

我国1958年确立的教育方针强调()

When you fill in the application form, please use your_______ address so that we can contact you easily later.

卢梭自然主义教育理论中的“消极教育”是指

We can not trust him any more because he often________ his duty.

He works in our university as a visiting _______, not as a formal faculty member.

Many kinds of animals are believed to have _________from the earth