度假、孩子上学、购买和装修住宅一般是由什么方式的家庭决策来作出决定的?( )。
Goods are carried by several of transport--on road or rail, by sea or air.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧