【单选题】网络商品经营者和网络服务经营者向消费者出具购货凭证或者服务单据,应当符合国家有关规定或者( );征得消费者同意的,可以以电子化形式出具。
【简答题】网络商品经营者和网络服务经营者向消费者出具购货凭证或者服务单据,应当符合国家有关规定或者商业惯例;征得消费者同意的,可以以电子化形式出具。( )
【单选题】Which month has ( ) days in a year? February.
【单选题】Which month has ________ days in a year? February.
【单选题】— Which month has ________ days in a year? — February.
【单选题】—Which month has ______ days in a year? —February.
【单选题】—Which month has ______ days in a year? —February.
【单选题】Which month has the largest rainfall in Guadalajara?