问题
选择题
It is known that water is not _____ endless resource, nor _____ that can be made once more.[ ]
A. the; 不填
B. an; one
C. an; that
D. 不填; one
答案
答案:B
It is known that water is not _____ endless resource, nor _____ that can be made once more.[ ]
A. the; 不填
B. an; one
C. an; that
D. 不填; one
答案:B