答案(点此获取答案解析）
\u6c64\uff1a\u53e4\u4e49\uff1a\u70ed\u6c34\uff0c\u4eca\u4e49\uff1a\u98df\u7269\u716e\u719f\u6240\u5f97\u7684\u6c41\u6c34\u3002,\u81ed\uff1a\u53e4\u4e49\uff1a\u539f\u6307\u5404\u79cd\u6c14\u5473\uff0c\u6b64\u6307\u9999\u5473\uff0c\u97f3xi\u00f9\uff0c\u
