The world's longest cross﹣sea bridge， Hong Kong﹣Zhuhai﹣Macao Bridge， opened _____ October 24，2018．（ ）
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in |
B． |
at |
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by |
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on |
The world's longest cross﹣sea bridge， Hong Kong﹣Zhuhai﹣Macao Bridge， opened _____ October 24，2018．（ ）
| A． |
in |
B． |
at |
C． |
by |
D． |
on |
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