单项选择题 某同学开发的微波炉程序，在运行时，计时停止后，GlassWindow中仅显示一个小红点（而不是完成的美食图），下面说法：

单项选择题 I remember being a student teacher in1974, sitting for two weeks in the back of my cooperating teacher′s classroomwatching her teach carefully before I had my chance to try. Her lessons flowed 16from

单项选择题 One of the greatest contributions ofFreud is that he elaborated the structure of human psyche as "Id","Ego" and "Superego". "Ego" is the natural humanpsychological characteristic that changes everythi