1.2345²+0.7655²+2.469×0.7655求答案啊,

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1.2345²+0.7655²+2.469×0.7655求答案啊,

1.2345²+0.7655²+2.469×0.7655求答案啊,
1.2345²+0.7655²+2.469×0.7655求答案啊,

1.2345²+0.7655²+2.469×0.7655求答案啊,