问题

Common sense requires us to get away from the concept that national boundaries are frontiers _________ knowledge may not spread.
A:with which
B:across with
C:through which
D:from which;
B:across with
C:through which
D:from which;
正确答案是:
同类题型
What did you do last night—I didn’t play the piano, _______, I watched a film with my parents.
Scissors can be dangerous, so don’t play with them.— _______ .
I used to love that film ____ I was a child, but I don’t feel it that way any more.
The boy insisted that he __________ nothing wrong and that he __________ at once.