第2题: [单项选择]During their first teacher-training year, the students often visited local schools for the ___________ of lessons. A. investigation B. inspection C. repetition D. observation 参考答案:D 答案解析:[译文]在他们教师培训的第一年,学生们为了观摩课程经常参观当地学校。
[解析]名词辨义。investigation意为“调查,研究”,如:conduct an investigation into