问题
ists across the world agree that thisis an invention of _______ great significance, _______ invention that willgreatly change human life.
A:the woman's window wasdirty
B:the writer's window was dirty
C:the woman livednearby
D:/ ; an
B:the writer's window was dirty
C:the woman livednearby
D:/ ; an
正确答案是：
