__________是指教师通过协调课堂内的各种人际关系而有效实现预定教学目标的过程。
参考答案：课堂管理
- The water was left running all night long.
- Yes. It seemed that John ___. He was the last one to leave the lab.
A．was to be blamed
B．was to blame
C． had been blamed
D． should be blamed
知觉的特性：组织性、（）和恒常性。
