作者: tihaiku 人气: - 评论: 0
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答案 B
解析 共57人答过,平均正确率78.9% 从电解总反应方程式可知,Cu失去电子,化合价升高,发生氧化反应。在电解池中,阳极发生氧化反应,与阳极相连的是直流电源的正极,则Cu电极为阳极,铜电极接直流电源的正极,石墨电极接直

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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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