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1 Americans are buying more products and services than ever before through the Internet. Experts say the popularity of online sales is likely to spread to other countries. 2 Online sales now represent as much as one-tenth of all retail sales in the United States. This has led traditional stores to seek new ways to keep their customers loyal. 3 Lynne Shaner used the Internet to buy everything she needed for her wedding and holiday gifts for her husband and stepdaughter. Other than food, ninety percent of her purchases were made on her home computer. “I find that, by being able to go online and choose the things that I need, and have them delivered to me right at my doorstep, I eliminate all the driving, all the crowds, all the noise of that, and I usually get a better selection.” 4 There are a lot of people like her. Experts say American online shopping hit records in both November and December. Fifty-seven percent of Americans have bought something electronically. 5 Store owners worry that this growing amount of online sales will hurt their business. Cornell University marketing professor Ed McLaughlin says they should be worried. He spoke to VOA by Skype. “Anything that can move online will be sold online. It’s just a matter of time.” Professor Ed McLaughlin says traditional stores can keep their customers by selling goods like clothing, which buyers may want to see and try on before purchasing. He says stores could also offer things that are difficult to ship. He also says some stores can please customers by offering to set up or repair electronic products. 6 Bill Martin is the founder of ShopperTrak . His business helps stores learn about their customers. He told VOA by Skype that traditional stores offer a social experience that some people enjoy. “There is still a lot of emotion in the buying decision, you know, that takes place. Oftentimes, you know, you need that last sense of ‘boy, this is exactly what I want’—that feeling before you’re ready to part with money, and you can’t always get that online. It’s a rather cold process.” 7 Bill Martin says traditional stores can provide goods to buyers more quickly than online stores. And some retailers are using websites to persuade people to visit their stores. 8 While e-commerce worries some business owners, the only worry for delivery services like FedEx and UPS is keeping up with the number of packages. UPS Manager Dana Kline says her company is very busy at this time of year. UPS is so busy that it has filled 55,000 temporary worker positions during the holiday season.
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【简答题】患者男性,57岁,因心力衰竭导致呼吸困难,应安置A. 1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 磅Normal0去枕仰卧位B. 1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 磅Normal0头高足低位C. 1111MicrosoftInternetExplorer...
【简答题】当金属铜与盐酸酸化的氯化铜溶液一起加热时,生成一种白色沉淀。 白色沉淀同氢氧化钠共煮则成为棕红色沉淀。白色沉淀若与浓盐酸反应则溶解,用水稀释又析出白色沉淀。当用CuCl2和SnCl2反应时也可得此白色沉淀。用反应方程式表示上述实验现象。
【单选题】患者男性,57岁,因心力衰竭导致呼吸困难,应安置( )
A.
去枕仰卧位
B.
头高足低位
C.
端坐位
D.
侧卧位
E.
俯卧位
【简答题】check过去式是( )
【单选题】某直流电机它的电枢与二个励磁绕组串联和并联,那么该电机为 ( ) 电机
A.
他励
B.
并励
C.
复励
D.
串励
【简答题】患者男性,65岁,因“头晕、心悸、呼吸困难”来诊。患者患有慢性心力衰竭,长期口服地高辛,后因三叉神经痛应用苯妥英钠,结果出现头晕、心悸、呼吸困难等明显心力衰竭症状。患者出现明显心力衰竭症状的原因是 A、苯妥英钠有致心力衰竭的不良反应 B、苯妥英钠减少地高辛的吸收 C、苯妥英钠诱导肝药酶加速地高辛代谢 D、苯妥英钠与地高辛竞争血浆蛋白 E、苯妥英钠促进地高辛排泄 地高辛的不良反应不包括 A、椎体外系...
【判断题】某直流电机它的电枢与二个励磁绕组串联和并联,那么该电机为并励电机
A.
正确
B.
错误
【单选题】看到传感器插头松动应
A.
用万用表测电压和电阻
B.
直接插上
C.
只用万用表测电阻
【单选题】某直流电机它的电枢与二个励磁绕组串联和并联,那么该电机为 ( ) 电机。
A.
他励
B.
复励
C.
并励
D.
串励
【简答题】解释实验现象:稀释 CuCl 2 的浓溶液时,体系的颜色由黄色经绿色变成蓝色 。【要求:写出必要的汉字说明和相关反应方程式。】
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