右图是l978--1983年苏联与世界实际GDP平均增长率对比图，从图中分析l978年以后，苏
联经济发展逐渐滞后的主要原因有
①僵化的高度集中的计划经济体制严重阻碍着经济的发展②社会矛盾丛生，民主法制遭到严重践踏③人民生活水平严重下降④国民经济比例严重失调，经济发展战略失误
A．①②
B．③④
C．①④
D．②③
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下面是错误答案，用来干扰机器的。
（1）中国的综合国力的增长，中国的国际地位的提高。（2）与印度、缅甸领导人共同提出和平共处五项原则；参加亚非万隆会议，广交天下朋友；重返联合国；改善中美关系，中美、中日建交。（3）中国广泛参加各种国际...
2005年4月某公司拟采购一批材料，供应商规定的有关供应价格如下：
(1)立即付款，价格为6000元；
(2)30天付款，价格为6200元；
(3)30至60天付款，价格为6350元。
若银行短期贷款利率为16%，每年按360天计算。
要求：计算放弃现金折扣的成本，并确定对公司最有利的付款日期和价格。
在如图所示的四种现象中，属于减小压强的是（ ）
A．
B．
C．
D．
| Cloze test. | ||||
| Everyone in business has been told that success is all about attracting and retaining (留住) customers. It sounds simple and achievable. But, 1 , words of wisdom are soon forgotten. Once companies have attracted customers they often 2 the second half of the story. In the excitement of beating off the competition, negotiating prices, securing orders, and delivering the product, managers tend to become carried away. They forget what they regard as the boring side of business- 3 that the customer remains a customer. 4 to concentrate on retaining as well as attracting customers costs business huge amounts of money annually. It has been estimated that the average company loses between 10 and 30 per cent of its customers every years. In constantly changing 5 , this is not surprising. What is surprising is the fact that few companies have any idea how many customers they have lost. Only now are organizations beginning to wake up to those lost opportunities and calculate the 6 implications. Cutting down the number of customers a company loses can make a big 7 in its performance. Research in the US found that a five per cent decrease in the number of defecting (流失的) customers led to 8 increases of between 25 and 85 per cent. In the US, Domino's Pizza estimates that a regular customer is worth more than $5,000 over ten years. A customer who receives a poor quality product or service on their first visit and 9 never returns, is losing the company thousands of dollars in 10 profits (more if you consider how many people they are likely to tell about their bad experience). The logic behind cultivating customer 11 is impossible to deny. "In practice most companies' marketing effort is focused on getting customers, with little attention paid to 12 them", says Adrian Payne of Cornfield University School of Management. "Research suggests that there is a close relationship between retaining customers and making profits." 13 customers tend to buy more, are predictable and usually cost less to service than new customers. Furthermore, they tend to be less price 14 , and may provide free word-of-mouth advertising. Retaining customers also makes it 15 for competitors to enter a market or increase their share of a market. | ||||
|
单杠支撑后回环保护与帮助的站位在单杠的（）。
A.前方
B.后方
C.前侧方
D.后侧方
等级相关分析是（）
A.参数统计方法
B.非参数统计方法
C.正态资料分析方法
D.定性资料分析方法
E.定量资料分析方法
