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对有14个结点的完全二叉树的结点以从上至下、从左至右的顺序进行编号后，序号最小的叶结点的序号为______。

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若一棵二叉树中只有叶结点和左、右子树皆非空的结点，设叶结点的个数为R，则左、右子树皆非空的结点个数是______。

Vending machines(自动贩卖机) sell many different types of items. Some of them sell cold drinks like soda, or hot drinks like coffee or hot chocolate. Others sell candy, stamps, tickets, news papers, and other types of small merchandise.These machines have been successful for two reasons. They save time and they are convenient.. Merchandise sold in machines eliminates the need for a salesclerk or cashier. In many places the customer can use the machines at any time of day or night.Although there are many different size and types of vending machines, they all work basically the same way. The customer puts a coin in the machine and then pushes a button, pulls a lever, or opens a door to receive the merchandise. Some machines will also return change to the customer for paper money. But the basic idea is the same. Customers like to save time and are usually willing to pay a higher price for this convenience.The sale of snacks in vending machines has always been very successful. However, machines now sell hot meals with only limited success. In New york City, automats used to sell a lot of hot foods in vending machines. But in recent years, fast food establishments have replaced automats.Vending Machine Vending machines have been popular because they are (1) , and convenience. (2) and paper money alike must be fed into a vending machine before you can receive merchandise. Vending machine can be used at any time of the day and night since they don’t need any sales clerk or (3) . Automats are now successful in the sale of (4) . In order to save time customers are usually willing to (5) for this convenience. 2（）

某旅游开发有限公司2011年10月发生有关业务及收入如下： (1)旅游景点门票收入400万元。 (2)在旅游景区经营观光索道、游览电车取得收入150万元，景区环保客运车取得收入30万元。 (3)篝火晚会文艺表演收入80万元。 (4)组织20人到武汉旅游，每人收取旅游费6000元，旅游中由公司支付每人黄鹤楼景点费100元、租车费150元、其他住宿餐饮费用600元。要求：根据以上资料，按照下列序号计算回答问题，每问需计算合计数。计算门票收入应缴纳的营业税。

PowerBuilder 10.0为使用．NET开发工具的用户提供了一套______工具。这项专利技术是为简化应用开发而设计的，可缩短开发时间、减少代码等。