Choose the suitable words and expressions to fill in the blanks of this summary based on reading this passage.As the most popular flower-drum opera in Hunan Province, Changsha Flower-drum Opera is (1)____________ by the use of Changsha accent. It has a history of more than 160 years. The most (2)____________ and unique part of Changsha Flower-drum Opera are lots of operetta and (3)_________.Another special folk art form in Changsha is Changsha Tanci which is also heavily affected by the local dialect. Tanci (4)___________ from an art form used by Taoists to spread their religion. It didn't (5)_________________ until the Qing Dynasty, and (6)_________ its present name in 1950s. In its early stage, the instrument used during the performance was confined to (7)_________. Later, it developed into antiphonal singing by two performers (8)____________ by playing different instruments. In the middle of 1920s, the two artists performing Tanci would sit in a shed and (9)___________ stories. Changsha Tanci is (10)_____________ along the Xiang River and Zishui River valley.
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通过BBS和新闻组对企业的产品进行的网上调查是( )。
A. 电子邮件调查
B. 网上论坛调查
C. 网站直接调查
D. 搜索
网上调研消费者购买行为的目的主要包括: ( )
A. 研究社会的政治、经济、文化教育等发展情况,对用户的需要将会发生什么影响和变化
B. 研究用户的家庭、地区、经济等基本情况,以及他们变动情况和发展趋势;
C. 研究用户对特定的商标或特定的商店产生偏爱的原因;
D. 调查某新产品的广告投放市场的效果