问题
选择题
If nature does not provide man with the necessary material, it is the laboratory ____ he will turn to for it. [ ]
A. where
B. that
C. which
D. what
答案
答案：B
搜题请搜索小程序“爱下问搜题”
If nature does not provide man with the necessary material, it is the laboratory ____ he will turn to for it. [ ]
A. where
B. that
C. which
D. what
答案：B