旅游经济要素的（ ）决定了旅游经济发展的阶段性。
A．区域性
B．盈利性
C．客观性
D．发展性
参考答案：C
The listeners were much than hoped. There were so many tickets left.
A．fewer
B．larger
C．more
D．less
啤酒花大部分品种的下位侧枝是能够正常开花的。
