Often such products are nothing more than money­making things for their promoters.The results they produce are questionable，and some are dangerous to health.

　　To understand how these products can be legally promoted to the public，it is necessary to understand something of the laws covering their regulation.If the product is a drug，FDA(Food and Drug Administration)can require proof under the Food，Drug，and Cosmetic Act that is safe and effective before it is put on the market.But if the product is a device，FDA has no authority to require premarketing proof of safety or effectiveness.If a product already on the market is a danger to health，FDA can request the producer or distributor to remove it from the market voluntarily，or it can take legal action，including seizure(查封)of the product.

　　One notable case a few years ago involved an electrical device called the Relaxacisor，which had been sold for reducing the waistline.The Relaxacisor produced electrical shocks to the body through contact pads.FDA took legal action against the distributor to stop the sale of the device on the grounds that it was dangerous to health and life.

　　Obviously，most of the devices on the market have never been the subject of court proceedings(法律诉讼)，and new devices appear continually.Before buying，it is up to the consumer to judge the safety or effectiveness of such items.

　　40．It can be inferred that the ads mentioned in the text are________.

【2017届广东省广州市重点学校高考英语一轮复习检测：1（含解析）】相关文章：

★ 2017届高考英语二轮复习课时训练：6（含解析）

★ 2015-2016高考英语二轮复习常见的七大误区

★ 2017届高考英语二轮复习大题冲关秘籍阅读理解七选五：解题策略（含解析）

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（8）模块3 《Unit 8 Adventure》（含解析） 北师大版必修1

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：Ⅱ卷强化增分练 训练1（含解析）

★ 2017届广东省广州市重点学校高考英语一轮复习检测：3（含解析）

★ 四川省广安市2014高考英语一轮基础训练题（4）及答案

★ 山西省永济市涑北中学高三英语总复习：美文欣赏（2）（My Mother）

★ 2017届广东省广州市重点学校高考英语一轮复习检测：5（含解析）

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 3 B卷 Word版含解析