50 
(A)carrying away 
(B)doing without 
(C)bringing about 
(D)remarking upon

50 
(A)carry sb away翻譯：使…興奮得失去控制、運走
(B)do without (sth)翻譯：湊合，應付，將就。
(C)bring sth about翻譯：引起；導致
(D)remark upon中文v. 評論；批評

Changes in information technology are both threatening and enhancing the ability of a business to develop long-term relationships with its customers, requiring relationship marketing.

The Internet allows a customer to contact a business any time of the day or night from any location to gather information, make purchases, or obtain information on the status正式地位, （尤指在社會中的）地位，身份 of accounts帳戶，戶口.

This information can be (46)___  to the needs of the individual customer. This has shifted 移動或改變 (47)___  to the customer because the Internet allows buyers to easily find information on competitive競爭 products and services.

Companies can also more easily find new customers and serve existing存在的；現存 customers by using databases to develop personal (48)___  and then targeting customers with customized information that can meet specific needs.

Amazon.com, (49)___  , personalizes e-mail, customizes web pages, and offers products based on a buyer’s past purchases.

Dell develops purchase portals for businesses, allowing for customized purchasing and invoicing（供之後支付的）費用清單.

The Internet is (50)___  a hyper亢奮的, 超出，過度-competitive競賽 environment where information technology is used as a vital重要 part of marketing strategy and relationship development.