题目

 The Internet has led to a huge increase in credit-card fraud. Your card information could even be for sale in an illegal website. Websites offering cheap goods and services should be regarded with card. On line, shoppers who enter their credit-card information may never receive the goods they thought they bought. The thieves then go shopping with your card number—or sell the information over the Internet.  Computer hackers have broken down security system and that raises questions about the safety of card-holder information.  Several months ago, 25,000 customers of CD universe, a下列属于油脂的用途的是 [　　] ①人类的营养物质　②制取肥皂　③制取甘油　④制备高级脂肪酸 ⑤制备汽油 A．①②③B．①③⑤C．②③④⑤D．①②③④