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如图,正方形\(ABCD\)的边长为4.对角线\(AC\),\(BD\)交于点\(O\),\(E\)是\(AC\)延长线上一点,且\(CE = CO\)。则\(BE\)的长度为( )。
A.\(4\sqrt 2 \)
B.\(6\sqrt 2 \)
C.\(2\sqrt {10} \)
D.\(4\sqrt {10} \)
参考答案:C
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