某患者,做冠容易脱落,检查聚合角多大,一般正常的聚合角为
患者女,28岁。产后6个月,月经周期缩短,妇科检查无异常。基础体温曲线呈双相型,提示为
前苏联教育心理学家注重教育心理学与发展心理学相结合的研究,最有代表性的是( )的研究,它推动了前苏联的学制与课程改革。
In a listening class, a teacher asks students to listen to the material carefully and try to discriminate the speaker's attitude towards lifelong learning. What sub-skill of listening is the teacher training?
下列关于留置权适用的表述中,正确的是( )。