硅酸盐水泥、普通水泥特性正确的是( )。A．耐热性差 B．水化热低 C．抗腐蚀能力

2004年6月某星期天，甲运输公司司机乙在为公司拉货时，因为饮酒，开车将丙撞成重伤，乙肇事后逃跑。丙躺于地，神志不清，丁路过，见状，拦起一辆出租车，掏出50元给(个体)司机戊，要求司机将伤者拉往己医院救治，司机答应，并将丙拉到该医院门诊室，值班医生庚在二楼打牌，戊见无人，遂将丙置于门诊室，离开。等值班医生打完牌回到门诊室时，丙已死亡。其妻丑起诉于法院。经医学鉴定，医治延误是丙死亡的原因之一。 问：

路人丁应否对丙的死亡承担赔偿责任丁的行为应该如何认定丁所支出的50元钱可否要求偿还如能，应向谁要求

在前臂前区，腕掌侧远端横纹上1寸，尺侧腕屈肌腱的桡侧缘的腧穴是（）。
在腕前区，腕掌侧远端横纹尺侧端，尺侧腕屈肌腱的桡侧凹陷处的腧穴是（）。

A.少海

B.神门

C.通里

D.少冲

E.阴郄

北京奥运场馆的建设体现了“绿色奥运”的理念．如下图所示，作为北京奥运台主场馆之一的国家体育馆“鸟巢”拥有9.1万个座位，其扇型屋面和大面积的玻璃幕墙不仅给人以赏心悦目之感．还隐藏着一座年发电量比较大的太阳能光伏发电系统，供给体育馆内的照明灯等使用．假如该发电系统在有太阳照射时的直接输出功率为1×10⁵W．

求：（1）按平均每天太阳照射6小时计，该发电系统一年（365天计）能输出多少电能？

（2）假若该发电系统的输出电压为250V，现准备向远处输电．所用输电线的总电阻为8Ω，要求输电时在输电线上损失的电功率不超过输送电功率的5%．用户获得220V电压，请画出远距离输电的输电示意图并标上相应的字母符号表示匝数、电压、电流．

（3）在第（2）问的条件下，求应选用匝数比多大的升压变压器和降压变压器？

《内蒙古农村信用社信息科技风险管理办法》中所指的信息科技风险管理的目标是什么？

For years Internet merchants have poured millions of dollars into new technologies to make their sites easier to use. So why aren’t online customers happier

Customer satisfaction levels have remained almost fiat through the last several years. The problem, according to Larry Freed, chief executive of a consulting and research firm called ForeSee Results, is not so much that consumers have ignored the many improvements made in recent years. Rather, be said, they still expect more from Internet shopping than it has delivered.

"If we walk into a local store, we don’t expect that experience to be better than it was a couple years ago," Mr. Freed said. "But we expect sites to be better. The bar goes up every year." In ForeSee’s latest survey, released last month, just five e-commerce sites registered scores higher than 80 out of 100, and no site scored higher than 85. It was much the same story a year ago, when just five scored higher than 80, with no site surpassing 85. "Scores have inched up over time for the best e-commerce companies, but the overall numbers haven’t moved drastically," Mr. Freed said. "At the same time though, if you don’t do anything you see your scores drop steadily."

That dynamic has been a challenge for online merchants and investors, who a decade ago envisioned. Internet stores as relatively inexpensive (and therefore extremely profitable) operations. Now some observers predict a future where online retailers will essentially adopt something like the QVC model, with sales staff pitching the site’s merchandise with polished video presentations, produced in a high-tech television studio.

QVC.com is evolving in that direction. The Web site, which sold more than $1 billion in merchandise in 2006, has for the last five years let visitors watch a live feed of the network’s broadcast. But in recent months, QVC.com has also given visitors the chance to watch archives of entire shows, and in the coming months visitors will be able to find more video segments from recent shows, featuring individual products that remain in stock. Bob Myers, senior vice president of QVC.com, said the Web site’s video salesmanship is especially effective when combined with detailed product information, customer reviews and multiple photographs.

About eight months ago, for instance, a customer said that she could not determine the size of a handbag from the photographs on the site because she could not tell the height of the model who was holding it. Within two weeks the site tested and introduced a new system, showing the bags with women of three different heights. The results were immediate: women who saw the new photographs bought the bags at least 10 percent more frequently than those who had not.

Still, Mr. Myers said, video is a critically important element to sales. "E-commerce started with television commerce," he said. "The sites who engage and entertain customers will be winning here in the near future." Such a prospect is not necessarily daunting to other e-commerce executives. Gordon Magee, head of Internet marketing for Drs. Foster & Smith, based in a Rhinelander, Wis., said a transition to video "will be seamless for us." The company, Mr. Magee said, has in recent weeks discussed putting some of its product on video "so customers could see a 360-degree view they don’t have to manipulate themselves.

The result of Foresee’ s recent survey shows that（）

A. there isn’t a huge increase in customer satisfaction

B. some companies have to watch their scores drop steadily

C. E-commerce companies will soon fall out of business

D. shopping experience in local stores can’t be better