问题
选择题
The number 911is a special number. _____. I think. that will be remembered by the Americans forever.[ ]
A . what
B. it
C. which
D. one
答案
答案：D
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The number 911is a special number. _____. I think. that will be remembered by the Americans forever.[ ]
A . what
B. it
C. which
D. one
答案：D