Warning: array_combine(): Both parameters should have at least 1 element in /www/wwwroot/wd.haodianxin.cn/wd.php on line 122 Warning: Invalid argument supplied for foreach() in /www/wwwroot/wd.haodianxin.cn/wd.php on line 129 Warning: Missing argument 2 for mc_save(), called in /www/wwwroot/wd.haodianxin.cn/wd.php on line 154 and defined in /www/wwwroot/wd.haodianxin.cn/wd.php on line 46 已知Rt△ABC中,∠ACB=90º,BC=5,tan∠A= 3 4 .将△ABC绕点C逆时针旋 ... - 问答
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已知Rt△ABC中,∠ACB=90º,BC=5,tan∠A= 3 4 .将△ABC绕点C逆时针旋 ...

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