问题 单项选择题

患儿,男,5岁,行后 * * 瓣膜切除。术后伤口愈合不良,输血浆110毫升。当输入30毫升时,发生寒战,体温升至40℃,减慢速度于10小时输完血浆,患儿休克,昏迷,白细胞为13.4×109/L,次日增至40×109/L(中性93%)。给氧,除原用青霉素、链霉素外,第二天加用金霉素、肾上腺皮质激素。昏迷持续两天死亡。患儿最可能是死于()。

A.发热反应

B.过敏反应

C.细菌污染反应

D.溶血反应

E.血液循环过荷

答案

参考答案:C

解析:本题患儿输血后出现发热、寒战、白细胞大幅升高,由此推断可能是细菌污染所引起。故选C。

阅读理解

阅读理解。

     In the U. S.  people prefer waiting for a table to sitting with people they don't know.  If you're sitting at

 a table with people you don't know, it's impolite to smoke without first asking if it will disturb (打扰) them.

     At American restaurants and coffee shops you are usually served cold water before you order. You

 may find the bread and butter is free, and if you order coffee, you may get a free refill (续杯).

     Most cities and towns have no rules about opening and closing times for stores or restaurants, though

  they usually do make rules for bars.  Especially in large cities, stores may be open 24 hours a day.

     Servings (提供的食物) in restaurants are often large, too large for many people.  If you can't finish

 your meal but would like to have the food later, ask your waiter or waitress for a "doggie bag",  It may

 have a picture of a dog on it, but everybody knows you're taking the food for yourself.

    Supper and dinner are both words for the evening meal. Some people have "Sunday dinner". This is

 an especially big noon meal.

    Tips are not usually added to the 'check (账单). They are not included in the price of the meal,

 either.  A tip of about 15 % is expected and you should leave it on the table when you leave.  In some

 restaurants, a check is brought on a plate and you put your money there. Then the waiter or waitress

 brings you your change,

1. What is served before you order?

     A. Cold water.    

     B. Bread.          

     C. Butter.        

     D. Coffee.

2. When servings are too large for them, American people might _____.

    A. leave the food on the table and get back some money

    B. take the food home with a dog

    C. take the food home with a doggie bag and enjoy the food later

    D. ask the waiter or waitress to share the food with them

3. "Sunday dinner" in this passage is _____.

    A. a big supper on Sunday          

    B. a big lunch on the weekends

    C. a big lunch on Sunday          

    D. a dinner at noon

4. If you spend $ 80 for your meal, you will probably leave a tip of _____for the waiter,

    A. $18      

    B. $12      

    C. $30      

    D. $50

5. Which of the following might be true according to the passage?

    A. American people like sitting with people they don't know.

    B. American people would not smoke if the people sitting at the same table mind their smoking.

    C. Orange juice is served before you order.

    D. Tips shouldn't be given to the waiter or waitress.

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