头发对人体器官具有（）作用。 A.保护 B.感觉 C.绝缘 D.调节体温

服从正态分布资料的原始数据都乘以一个常数k（k>0）（）

A.均数不变，标准差不变

B.均数不变，标准差改变

C.均数改变，标准差不变

D.均数变为k倍，标准差变为k倍

E.均数变为kn倍，标准差变为k（n-1）倍

某商场开展促销活动，设计一种对奖券，号码从000000到999999. 若号码的奇位数字是不同的奇数，偶位数字均为偶数时，为中奖号码，则中奖面（即中奖号码占全部号码的百分比）为　　　　　　　.

李某，男，75岁，素有胃疾。大便秘结，质干燥，数日一行，面色无华，头晕眼花，心悸失眠，爪甲色淡，唇舌淡，脉细。

该病例方剂宜选用（）

A.黄芪汤

B.润肠丸

C.五仁丸

D.麻子仁丸

E.八珍汤

“In only six days I lost seven pounds of weight.”

“Two full inches in the first three days！”

These are the kinds of statements used in magazine，newspaper，radio and television ads，promising new shapes and new looks to those who buy the medicine or the device. The promoters of products say they can shape the legs，slim the face，smooth wrinkles，or in some other way to add to beauty or desirability.

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.

小题1:It can be inferred that the ads mentioned in the text are________.

A．objective

B．costly

C．unreliable

D．illegal小题2:FDA can ask for the proof of safety and effectiveness of a product ________.

A．if it is a drug

B．if it is a device

C．if its consumers make complaints

D．if its distributors challenge FDA's authority小题3:The Relaxacisor is mentioned as________.

A．a product which was designed to produce electricity

B．a product whose distributor was involved in a legal case

C．a successful advertisement of a beauty product

D．an example of a quality beauty product小题4:The author intends to________.

A．make consumers aware of the promoters' false promises

B．show the weakness of the law on product safety

C．give advice on how to keep young and beautiful

D．introduce the organization of FDA

《砌体规范》的3．2．3条规定了砌体强度设计值的调整系数，应如何理解？