问题
选择题
After all, ______ makes a new invention such a wonderful thing is ______ it allows us to do something we could not do before.[ ]
A. what ; what
B. that ; that
C. what; that
D. that; what
答案
答案:C
After all, ______ makes a new invention such a wonderful thing is ______ it allows us to do something we could not do before.[ ]
A. what ; what
B. that ; that
C. what; that
D. that; what
答案:C