问题
选择题
The humans are destroying nature day by day, _____ of course, will cause severe punishment from it sooner
or later.[ ]
A. who
B. when
C. on which
D. which
答案
答案：D
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The humans are destroying nature day by day, _____ of course, will cause severe punishment from it sooner
or later.[ ]
A. who
B. when
C. on which
D. which
答案：D