Nicotine was ruled in the US last week to be an addictive substance and could therefore be brought under the control of the Food and Drug Administration (FDA). It is usually regulated by the more liberal Federal Trade Commission. David Kessler, the FDA's commissioner, has already asked ...
The addictive substance(物质) in cigarettes is nicotine(尼古丁). When people smoke, the nicotine goes right into the blood stream and makes people feel comfortable. A smoker's body gets used to the nicotine, and if he stops smoking, he feels nervous. Many smokers try to stop smoking but ...
Nicotine is a substance that is found in certain plants, such as tobacco, in the nightshade plant family. It is a stimulant that acts on the parasympathetic system. It is an addictive substance.Answer and Explanation: As a drug, nicotine is used in products that help individuals stop smoking...
While we don't know the long-term effects of Zyn yet, health experts say there are several health concerns to be aware of when it comes to nicotine use, including cardiovascular, gastrointestinal and oral health impacts. "We know that it increases heart rate (and) blood pressure," Dohadwala...
One reason is that people become addicted(成瘾)to cigarettes.The addictive substance(物质)in cigarettes is nicotine(尼古丁).When people smoke, the nicotine goes right into the blood stream and makes people feel comfortable.A smoker's body gets used to the nicotine, and if he stops smoking, ...
The US took a step closer to regulating cigarettes last week when an advisory panel of the Food and Drug Administration (FDA) said that nicotine is addictive. The panel had been asked to determine whether nicotine is addictive, whether an addictive threshold exists, and, if so, what that ...
解答 62.答案:B.细节理解题,根据The addictive substance(物质)in cigarettes is nicotine(尼古丁).When people smoke,the nicotine goes right into the blood stream and makes people feel comfortable.A smoker's body gets used to the nicotine,and if he stops smoking,he feels nervous.可知:尼古丁让人们...
Nicotine is an alkaloid stimulant that comes from the nightshade family of plants, particularly from the leaves of tobacco. The type of nicotine found in tobacco plants is called Nicotiana tabacum. Nicotine can also be synthetically produced. Read on to
Why do people smoke? One reason is that people become addicted(成瘾) to cigarettes. The addictive substance(物质)in cigarettes is nicotine(尼古丁). When people smoke the nicotine goes right into the blood stream and makes p
One reason is that people become addicted(成瘾) to cigarettes.The addictive substance(物质)in cigarettes is nicotine(尼古丁).When people smoke,the nicotine goes right into the blood stream and makes people feel comfortable.A smoker's body gets used to the nicotine,and if he stops smoking,he ...