为什么有些物品（如化妆品）可以薄利多销，而有些物品（如药品）却不行？是不是所有的药品（包括滋补品）都不能薄利多销？为什么？
相关标签： 薄利多销 滋补品
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为什么化妆品可以薄利多销而大米却不行？是不是所有的食品都不能薄利多销？为什么？
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Questions 46 to 50 are based on the following passage.
You may have heard that Coca-Cola once contained an ingredient capable of sparkingparticular devotion in consumers: cocaine. The "Coca" in the name referred to the extracts ofcoca leaf that the drink&39;s originator, chemist John Pemberton, mixed with his sugary syrup (浆汁). At the time, coca leaf extract mixed with wine was a common tonic (滋补品), andPemberton&39;s sweet brew was a way to get around local laws prohibiting the sale of alcohol. Butthe other half of the name presents another ingredient, less infamous (名声不好的), perhaps, but also strangely potent: the kola nut.
In West Africa, people have long chewed kola nuts as stimulants, because they containcaffeine that also occurs naturally in tea, coffee, and chocolate. They also have heartstimulants.
Historian Paul Lovejoy relates that the cultivation of kola nuts in West Africa is hundreds ofyears old. The leafy, spreading trees were planted on graves and as part of traditional rituals. Even though the nuts, which need to stay moist, can be somewhat delicate to transport, traders carried them hundreds of miles throughout the forests and grasslands.
Europeans did not know of them until the 1500s, when Portuguese ships arrived on the coast ofwhat is now Sierra Leone. And while the Portuguese took part in the trade, ferrying nuts downthe coast along with other goods, by 1620, when English explorer Richard Jobson made his wayup the Gambia, the nuts were still peculiar to his eyes.
By the late 19th century, kola nuts were being shipped by the tonne to Europe and the US. Many made their way into medicines, intended as a kind of energy boost. One such popularmedicinal drink was Vin Mariani, a French product consisting of coca extract mixed with redwine. It was created by a French chemist, Angelo Mariani, in 1863. So when Pemberton createdhis drink, it represented an ongoing trend. When cocaine eventually fell from grace as abeverage ingredient, kola-extract colas became popular.
The first year it was available, Coca-Cola averaged nine servings a day across all the Atlantasoda fountains where it was sold. As it grew more popular, the company sold rights to bottlethe soda, so it could travel easily. Today about 1.9 billion Cokes are purchased daily. It&39;sbecome so iconic that attempts to change its taste in 1985—sweetening it in a move projectedto boost sales—proved disastrous, with widespread anger from consumers. "Coca-ColaClassic" returned to store shelves just three months after the "New Coke" was released.
These days, the Coca-Cola recipe is a closely guarded secret. But it&39;s said to no longercontain kola nut extract, relying instead on artificial imitations to achieve the flavour.
What do we learn about chemist John Pemberton?
A.He used a strangely potent ingredient in a food supplement.
B.He created a drink containing alcohol without breaking law.
C.He became notorious because of the coca drink he developed.
D. He risked breaking local law to make a drink with coca leaves.
How come kola-extract colas became popular?
A.A.Cocaine had become notorious.
B.B.Alcoholic drinks were prohibited.
C.C.Fountains were set up to sell them.
D.D.Rights were sold to bottle the soda.
What is known about the taste of Coca-Cola?
A.A.It was so designed as to create addiction in consumers.
B.B.It still relies on traditional kola nut extract.
C.C.It has become more popular among the old.
D.D.It has remained virtually unchanged since its creation.
What is the passage mainly about?
A.A.The evolution of Coca-Cola.
B.B.The success story of Coca-Cola.
C.C.The medicinal value of Coca-Cola.
D.D.The business strategy of Coca-Cola.
What can be inferred from the passage about 18-hour cities?
A.They especially appeal to small businesses.
B.They have seen a rise in property prices.
C.They have replaced quiet with excitement.
D.They h