问题
选择题
There isn't any difference between the two. I really don't know _________. [ ]
A. where to choose 
B. which to choose
C. to choose what
D. to choose which
答案
答案：B
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There isn't any difference between the two. I really don't know _________. [ ]
A. where to choose
B. which to choose
C. to choose what
D. to choose which
答案：B