问题
选择题
The oil wells will all run dry in _____ thirty years at the present speed of use. [ ]
A. or so
B. or else
C. about
D. above
答案
答案：C
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The oil wells will all run dry in _____ thirty years at the present speed of use. [ ]
A. or so
B. or else
C. about
D. above
答案：C