旅游投诉管理机关作出的处理决定应当用旅游投诉处理决定书在10日内通知相关人员。
参考答案：错
23. With the economic situation worsening _______, shopkeepers have to sell their goods ______ a big discount to attract customers.
A．day by day; with
B．day after day; at
C．day by day; at
D．day after day; in
温毒
