单项选择题

护士指导患者正确使用人工肛门袋，下列错误的是

A.选择大小合适的肛门袋
B.用清水清洗肛门袋
C.肛门袋需晾干后备用
D.造口周围皮肤干燥后才可安置造口袋
E.肛门袋内充满2/3排泄物时，须进行更换

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The traditional distinction between products that satisfy needs and those that satisfy wants is no longer adequate to describe classes of products. In today's prosperous societies the distinction has become obscure because so many wants have been turned into needs. A writer, for instance, can work with paper and pencils. These are legitimate needs for the task. But the work can be done more quickly and efficiently with a word processor. Thus a computer is soon viewed as a need rather than a want.In the field of marketing, consumer goods are classed according to the way in which they are purchaseD.The two main categories are convenience goods and shopping goods. Two lesser types are specialty goods and unsought goods. It must be emphasized that all of these types are based on the way shoppers think about products, not on the nature of the products themselves. What is regarded as a convenience item in France (wine, for example) may be a specialty good in the United States.People do not spend a great deal of time shopping for such convenience items as groceries, newspapers, toothpaste, razor blades, aspirin, and candy. The buying of convenience goods may be done routinely, as some families buy groceries once a week. Such regularly purchased items are called staples. Sometimes convenience products are bought on impulse: someone has a sudden desire for an ice cream sundae on a hot day. Or they may be purchased as emergency items.Shopping goods are items for which customers search. They compare prices, quality, and styles, and may visit a number of stores before making a decision. Buying an automobile is often done this way.Shopping goods fall into two classes: those that are perceived as basically the same and those that are regarded as different, Items that are looked upon as basically the same include such things as home appliances, television sets, and automobiles. Having decided on the model desired, the customer is primarily interested in getting the item at the most favorable pricE.Items regarded as inherently different include clothing, furniture, and dishes. Quality, style, and fashion will either take precedence over price, or they will not matter at all.Specialty goods have characteristics that impel customers to make special efforts to find them. Price may be no consideration at all. Specialty goods can include almost any kind of product. Normally, specialty goods have a brand name or other distinguishing characteristics.Unsought goods are items a consumer does not necessarily want or need or may not even know about. Promotion or advertising brings such goods to the consumer's attention. The product could be something new on the market as the Sony Walkman once was or it may be a fairly standard service, such as life insurance, for which most people will usually not bother shopping.A word processor can be looked on as satisfying a need rather than a want ifA.it is used at home to do paper work.B.it is used by a writer to type a novel.C.it becomes the only means to an enD.D.a writer does not want to use it.

A.B.
C.
D.
E.
F.
G.
A
H.it
I.
B.it
J.
C.it
K.
D.a

单项选择题

患者男，43岁。近3个月来排便次数增多，下腹隐痛，直肠指检距肛门口约4Cm处触及一肿块，经直肠镜检后确诊为直肠癌，需行直肠癌Miles手术。为预防术后吻合口瘘，以下护理措施错误的是

A.术前晚清洁灌肠
B.术前口服肠道抗生素
C.术前晚温水坐浴
D.术前口服甘露醇
E.术前2日起进流质饮食