睾丸发源于胚胎后腹中线旁的两侧泌尿生殖嵴,从胚胎期的何时开始下降A.第7周B.第3个月C.第7个月D.第2个月E.第9个月

作者: rantiku 人气: - 评论: 0
问题 睾丸发源于胚胎后腹中线旁的两侧泌尿生殖嵴,从胚胎期的何时开始下降
选项 A.第7周 B.第3个月 C.第7个月 D.第2个月 E.第9个月
答案 C
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.'; ?>