教师如果不了解学生，就不可能有针对性地进行教育，不可能因材施教。因此教师应该像医生一样，成为（）。
参考答案：学生的诊断师
—What does she look like?
—____
A. She’s a student.
B. She likes apples.
C. She has long arms.
After doing part-time jobs or a week, he got a______ position as office-boy.
A．permanent
B．aggressive
C．universal
D．abstract.
