http请求方式: POST https://api.weixin.qq.com/cgi-bin/media/uploadnews?access_token=ACCESS_TOKEN

调用此接口，一次发送多条数据，用户只收到一条，为什么？下面接口中 content 里的数据 支持 html ，是否需要转义？

{
   "articles": [	 
        {
            "thumb_media_id":"qI6_Ze_6PtV7svjolgs-rN6stStuHIjs9_DidOHaj0Q-mwvBelOXCFZiq2OsIU-p",
            "author":"xxx",		
            "title":"Happy Day",		 
            "content_source_url":"www.qq.com",		
            "content":"content",		 
            "digest":"digest",
            "show_cover_pic":1,
            "need_open_comment":1,
            "only_fans_can_comment":1
        },	 
        {
            "thumb_media_id":"qI6_Ze_6PtV7svjolgs-rN6stStuHIjs9_DidOHaj0Q-mwvBelOXCFZiq2OsIU-p",
            "author":"xxx",		
            "title":"Happy Day",		 
            "content_source_url":"www.qq.com",		
            "content":"content",		 
            "digest":"digest",
            "show_cover_pic":0,
            "need_open_comment":1,
            "only_fans_can_comment":1
        }
   ]
}