_____ computer is the most important inv
题型:选择题
问题:
_____ computer is the most important invention of _____ twentieth century. [ ]
A. A; the
B. The; the
C. The; 不填
D. A; 不填
_____ computer is the most important invention of _____ twentieth century. [ ]
A. A; the
B. The; the
C. The; 不填
D. A; 不填