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【简答题】
(本小题满分16分)
求新桥BC的长;
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参考解析:
刷刷题刷刷变学霸
举一反三
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A.
23 分
B.
38 分
C.
42 分
D.
46 分
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A.
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B.
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C.
in charge of
D.
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