长度相等的弧是等弧.(  )

作者: tihaiku 人气: - 评论: 0
问题 长度相等的弧是等弧.(  )
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解析 在同圆或等圆中,能够完全重合的两段弧叫等孤.等弧不仅要求长度相等,而且要求所含度数也要相等(弯曲程度相等).
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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
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