The scientist gave up the traditional way ________ he did research on insects．
The scientist gave up the traditional way ________ he did research on insects．
A.in which
B.which
C.what
D.where
答案及解析： A
The scientist gave up the traditional way ________ he did research on insects．
A.in which
B.which
C.what
D.where
答案及解析： A