百度试题 结果1 题目What is the substance in cigarettes that causes cancer? A. Cigarette ashes. B. Nicotine. C. Tar. D. Not mentioned here. 相关知识点: 试题来源: 解析 C 涉及知识点:个人情况与人们 反馈 收藏
What is the substance called which can readily be converted from a liquid into a vapor, and also from a vapor into liquid with a reasonably narrow range of pressure?(1.0) A. Refrigerator. B. Refrigerant. C. Cooling medium. D. Brine. 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
Why do people smoke One reason is that people be come dependent on cigarettes. The substance which people cannot resist in cigarettes is nicotine. When people smoke the nicotine goes directly into the blood stream and makes people feel relaxed. A smoker’s body gets accustomed to the nicotine ...
What is the substance that prevents alveoli from closing? Surface Tension: Surface tension of a liquid is the force on the surface molecules by the rest of the molecules, striving to create the least possible surface area. This is an attractive force between like molecules striving to have the...
【医学情报局】什么是青少年药物使用和滥用 What is Substance Use and Abuse, Teen(中英双语)397 0 2024-05-08 12:00:00 未经作者授权,禁止转载 您当前的浏览器不支持 HTML5 播放器 请更换浏览器再试试哦~11 投币 4 分享 爱思唯尔医疗保健中心提供临床工具和资源、最新的专家见解、世界卫生当局的指导和研究...
1{{I}}Questions 22 ～ 25 are based on the following monologue.{{/I}}What is the substance in cigarettes that causes cancer A.Cigarette ashes.B.Nicotine.C.Tar.D.Not mentioned here. 2{{I}}Questions 22～25 are based on the following monologue.{{/I}}What is the substance in cigarettes...
Enzymes are catalysts of a biologic origin that drive reactions by lowering the activation energy needed for the reaction. They typically speed up reactions, although some catalysts can actually slow the rate of a reaction. Related Terms:Active Site - The active site is the area of the enzyme ...
What is the substance in cigarettes that causes cancer() A. Nicotine. B. Ashes. C. Smoke. D. Tar. A. [听力原文] B. Smoking can be harmful to your health. But why do people smoke C. One reason is that people become addicted to cigarettes. To be addicted means that your body comes...
单项选择题Questions 11 ～ 14 are based on the following passage.What is the substance in cigarettes that causes cancer A.Nicotine. B.Not mentioned here. C.Tar. D.Cigarette ashes. 点击查看答案&解析 延伸阅读
What is the hardest natural substance? A. Diamond B. Gold C. Silver D. Copper 相关知识点: 试题来源: 解析 A。钻石是最硬的天然物质。选项 A“Diamond”是钻石;选项 B“Gold”是金;选项 C“Silver”是银;选项 D“Copper”是铜。反馈 收藏 ...