【正确答案】 A

【答案解析】[听力原文]
Good morning and welcome to the Asian Tourism Conference. First of all, I'd like to thank those of you who traveled great distances to be with us today. We trust that the trip will be worthwhile. I'm pleased to announce that we have our best turnout for this event including participants from over 30 different countries. Throughout the next few days, hundreds of different resorts and travel companies will set up booths at the banquet hall to present the latest trends in tourism. Please feel free to head over to the banquet hall at your convenience. We will also be serving coffee and snacks in the main lobby for those who are interested.

[解析] 通过文章开头部分提到的Good morning and welcome to the Asian Tourism Conference. ～ who traveled great distances to be with us today. 可以得知，主要是为了欢迎与会者。

【正确答案】 C

【答案解析】[解析] 通过文章开头部分提到的Good morning and welcome to the Asian Tourism Conference. 可以得知，听者们从事的是旅游业，并且通过后面出现的内容也可以推断出他们从事的是这一行业。

【正确答案】 A

【答案解析】[解析] 通过文章后半部分提到的We will also be serving coffee and snacks in the main bobby for those who are interested. 可以得知，提供咖啡和点心。