公平交易权是指旅游消费者在购买商品或者接受服务时享有获得______等公平交易条件的权利。

A．价值满意

B．质量保障

C．价格合理

D．计量正确

Passage One

What is the speaker’s main topic

A．The replacement of the harpsichord by the piano.

B．The development of electronic musical instruments.

C．The relative costs of different types of musical instruments.

D．The performance of classical music on synthesizers.