以下禽病中可经卵垂直传播的有（）。A．新城疫B．马立克氏病 C．鸡白痢

作者: rantiku 人气: - 评论: 0

问题以下禽病中可经卵垂直传播的有（）。

选项 A．新城疫 B．马立克氏病 C．鸡白痢

答案 CD

解析

分享到：

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！

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.'; ?>