问题 判断题

琼脂扩散试验中,有的受检样品产生2条沉淀线,其中一线与已知抗原(抗体)的沉淀线融合者仍判为阳性反应。

答案

参考答案:对

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阅读理解

阅读理解。

     Tea drinking was common in China for nearly one thousand years before anyone in Europe had ever

heard about tea . People in Britain were much slower in finding out what tea was like , mainly because

tea was very expensive . It could not be bought in shops and even those people who could afford to have

it sent from Holland did so only because it was a fashionable curiosity . Some of them were not sure how

to use it . They thought it was a vegetable and tried cooking the leaves . Then they served them mixed

with butter and salt . They soon discovered their mistake but many people used to spread the used tea

leaves on bread and give them to their children as sandwiches .

     Tea remained scarce and very expensive in England until the ships of the East India Company began

to bring it direct from China early in the seventeenth century . During the next few years so much tea came

into the country that the price fell and many people could afford to buy it .

     At the same time people on the Continent were becoming more and more fond of tea . Until then tea

had been drunk without milk in it , but one day a famous French lady named Madame de Sevigne

decided to see what tea tasted like when milk was added . She found it so pleasant that she would never

again drink it without milk . Because she was such a great lady that her friends thought they must copy

everything she did ,they also drank their tea with milk in it . Slowly this habit spread until it reached

England and today only very few Britons drink tea without milk .

     At first , tea was usually drunk after dinner in the evening . No one ever thought of drinking tea in the

afternoon until a duchess (公爵夫人) found that a cup of tea and a piece of cake at three or four o'clock

stopped her getting "a sinking feeling" as she called it . She invited her friends to have this new meal with

her and so , tea-time was born .

1. This passage mainly discusses             .

A. the history of tea drinking in Britain  

B. how tea became a popular drink in Britain

C. how the Britons got the habit of drinking tea        

D. how tea-time was born

2. Tea became a popular drink in Britain          .

A. in the eighteenth century          

B. in the sixteenth century

C. in the seventeenth century          

D. in the late seventeenth century

3. People in Europe began to drink tea with milk because            .

A. it tasted like milk                

B. it tasted more pleasant  

C. it became a popular drink

D. Madame de Sevinge was such a lady with great social influence that people tried to copy  

     the way she drank tea

4. We may infer from the passage that the habit of drinking tea in Britain was mostly due to the 

     influence of         .

A. a famous French lady

B. the ancient Chinese

C. the upper  social class

D. people in Holland