题目

以下免疫过程中，参与非特异性免疫的是( ) A．吞噬细胞的吞噬作用 B．皮下注射狂犬病疫苗 C．胎儿通过胎盘从母体获得抗体 D．静脉注射抗狂犬病毒的抗体 答案：A 　　Isn't it astonishing how much time we talk about food?"Have you ever eaten…?What did you have for lunch?" and so on．And yet when you travel from one country to another, you will find that people have quite different feelings about food．People often feel that what they eat is normal and what other people eat is strange．In England, people eat potatoes every day．In the Middle East, bread is the main part of every meal．Eating like so many things we do, becomes a habit which is difficult to change．Americans like to drink a lot of orange juice and coffee．The English drink tea four or five times every day．Australians drink a great deal of beer, and the French drink wine every day． 　　The sort of meat people like to eat also differs from one country to another．Horse meat is thought to be delicious in France．New Zealanders eat sheep, but they never eat goat meat．The Japanese don't like to eat sheep meat because of its smell, but they enjoy eating raw fish． 　　So it seems that although eating is a topic we can talk about for hours, there is very little common sense in what we say it．People everywhere enjoy eating what they have always eaten, and there is very little we can do to change our eating habits． (1) Which one is the meaning of "raw' ________． [　　] A． not cooked B． nicely cooked C． big D． young (2) What is the main part of every meal in the Middle East? [　　] A． Rice． B． Bread． C． Meat． D． Tomato (3) According to the passage, which of the following is true? [　　] A． In some parts of Asia people like rice． B． Eating is a topic that people don't like to talk about． C． The habit of eating is easy to change． D． French people like sheep meat very much．