两明渠均匀流,流量相等,且断面形状尺寸、水深都相同,A的粗糖系数是B的2倍,渠底坡度A是B的几倍?( )A. 0.5 倍 B. 1 倍 C. 2 倍 ...

作者: tihaiku 人气: - 评论: 0
问题 两明渠均匀流,流量相等,且断面形状尺寸、水深都相同,A的粗糖系数是B的2倍,渠底坡度A是B的几倍?( )
选项 A. 0.5 倍 B. 1 倍 C. 2 倍 D. 4 倍
答案 D
解析

猜你喜欢

发表评论
更多 网友评论0 条评论)
暂无评论
错误啦!

错误信息

  • 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
    <?php echo 'KongPHP, Road to Jane.'; ?>