沙门菌检验时，不需经过前增菌的食品有（）。 A.鲜肉、鲜蛋、鲜乳或其他未经加工的食品

齐次方程组

的基础解系是______．

阅读理解。

     Shopping for clothes is not the same experience for a man as it is for a woman. A man goes shopping

because he needs something. His purpose is settled and decided in advance. He knows what he wants,

and his objective is to find it and buy it; the price is a secondary consideration. All men simply walk into a

shop and ask the assistant for what they want. If the shop has it in stock, the salesman promptly produces

it, and the business of trying it on follows at once. All being well, the deal can be and often is completed in

less than five minutes, with hardly any chat and to everyone's satisfaction.

     For a man, slight problems may begin when the shop doesn't have what he wants. In that case the

salesman, as the name implies, tries to sell the customer something else, he offers the nearest he can to

the article required. No good salesman brings out such a substitute impolitely; he does so with skill: "I

know this jacket is not the style you want, sir, but would you like to try it for size? It happens to be the

colour you mentioned. "Few men have patience with this treatment, and the usual response is: "This is the

right colour and may be the right size, but I should be wasting my time and yours by trying it on."

     Now how does a woman go about buying clothes? In almost every respect she does so in the

opposite way. Her shopping is not often based on need. She has never fully made up her mind what she

wants, and she is only "having a look round". She is always open to persuasion; indeed she sets great

store by what the saleswoman tells her, even by what companions tell her. She will try on any number of

things. Uppermost in her mind is the thought of finding something that everyone thinks suits her. Contrary

to a lot of jokes, most women have an excellent sense of value when they buy clothes. They are always

on the lock- out for the unexpected bargain. Faced with a roomful of dresses, a woman may easily spend

an hour going from one rail to another, to and fro, often retracing her steps, before selecting the dresses

she wants to try on. It is a laborious process, but apparently an enjoyable one. Most dress shops provide

chairs for the waiting husbands.

1. According to the passage, when a man is buying clothes,____________.

A. he buys cheap things, regardless of quality

B. he chooses things that others introduce

C. he does not mind how much he has to pay for the right things

D. he buys good quality things, so long as they are not too dear

2.What does the passage tell us about women shoppers for clothes?

A. They welcome suggestions from anyone.

B. Women rarely consider buying cheap clothes.

C. Women often buy things without giving the matter proper thought.

D. They listen to advice but never take it.

3.What does a man do when he can not get exactly what he wants?

A. He buys a similar thing of the colour he wants.

B. He usually does not buy anything.

C. At least two of his requirements must be met before he buys.,

D. So long as the style is right, he buys the thing.

4. Many jokes make fun of women shoppers by saying that_________ .

A .they waste money on inferior( 劣质的 )goods

B. they should buy only the best clothes

C. they are much more sensible than men

D. they think of the price of clothes and nothing else

5. Rrhat is the most obvious difference between men and women shoppers?

A. The fact that men do not try clothes on in a shop.

B. Women bargain for their clothes, but men do not.

C. Women stand up to shop, but men sit down.

D. The time they take over buying clothes.

设计招标的特点是什么？

关于阿米巴病，下列描述正确的是（）

A.阿米巴病可分为肠阿米巴病和肠外阿米巴病

B.临床症状以腹痛、腹泻、脓血便为主

C.囊前期为其过渡型

D.肝阿米巴病的常见并发症为肠穿孔和肠出血

E.肠阿米巴病的治疗包括一般性治疗、病原性治疗和并发症的治疗

下列哪项不属于根据经纪活动所涉及内容分类的经纪人类别( )

A．房产经纪人
B．体育经纪人
C．保险经纪人
D．医疗经纪人