俄罗斯教育心理学的奠基人是()(常考)
According to the passage, the best way for children to learn things is by _____.
子宫内膜不规则脱落时,应为
观察和实验是科学探究最基本的方法。下列与之有关的叙述正确的是( )。
If a teacher asks students to talk about their hobbies in groups, he/she is trying to encourage_________.
为实现征信系统的技术升级、产品升级和服务升级,征信中心于( )年正式启动了征信系统二代建设,成立了二代建设领导小组,专职负责二代建设工作。