单项选择题
A.in B.like C.for D.as
A. it is too dull to attend lectures B. quite a lot of teachers can produce the results students desire C. they must be inspired to learn D. there are great differences among the lecturers as to their quality of teaching
A. how well they give their lectures B. how well they get along with the students C. how many papers and books they have published D. how well they conduct their academic researches