简述经营者与消费者交易时应遵循的基本原则。
参考答案：自愿原则；平等原则；公平原则；诚实信用原则。(每点1分)
Jane was so ______ for the news of her lost child that she was almost driven ______.
A．proper; madly
B．thirsty; mad
C．sad; madly
D．curious; mad
右侧标志指示前方是高速公路的终点。
