试题与答案

以下农产品品种属绿色通道的是（）.A.青豆 B.粮食 C.小麦 D.马铃薯

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题型：多项选择题

题目：

以下农产品品种属绿色通道的是（）.

A.青豆

B.粮食

C.小麦

D.马铃薯

答案：

参考答案：A, D

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题型：阅读理解

阅读理解。

     "How are you?" is a nice question. It's a friendly way that people in the United States greet each other.

But "How are you?" is also a very unusual question. It's a question that often doesn't need an answer. The

person who asks "How are you?" hopes to hear the answer "Fine", even if the person's friend isn't fine.

The reason is that "How are you?" isn't really a question and"Fine" isn't really an answer. They are simply

other ways of saying "Hello" or "Hi".

     Sometimes, people also don't say exactly what they mean. For example, when someone asks "Do you

agree?" the other person might think, "No, I disagree. I think you're wrong…" But it isn't very polite to

disagree so strongly, so the other person might say "I'm not sure." It's a nicer way to say that you don't

agree with someone.

     People also don't say exactly what they are thinking when they finish talking with other people. For

example, many talks over the phone finish when one person says"I have to go now." Often, the person

who wants to hang up gives an excuse:"Someone's at the door." "Something is burning on the stove."

The excuses might be real, or not. Perhaps the person who wants to hang up simply doesn't want to talk

any more, but it isn't polite to say that. The excuse is more polite, and it doesn't hurt the other person.

     Whether they are greeting each other, talking about an idea, or finishing a talk, people don't say exactly

what they are thinking. It's an important way that people try to be nice to each other, and it's part of the

game of language.

1. When a person in the United States asks "How are you?", he or she wants to hear " _______". [ ]

A. How are you?

B. Hello.

C. I don't know.

D. Fine.

2. When a person disagrees with someone, it is polite to say "_______". [ ]

A. You're wrong. I disagree.

B. I'm not sure.

C. I'm sure I disagree.

D. No, I disagree.

3. A polite way to finish a talk is to say "_______". [ ]

A. You have to go now.

B. I want to hang up.

C. I have to go now.

D. I don't want to talk any more.

4. When a person says "I have to go now" "Someone's at the door", the person may be _______. [ ]

A. giving an excuse

B. hurting someone's feeling

C. ill in bed

D. asking you a question

5. What does the rule of the game of language probably mean? [ ]

A. Be polite.

B. Don't disagree with people.

C. Always say what you mean.

D. Never say exactly what you are thinking.

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题型：计算题

（选做题，选修3-4）

如图所示，是某绳波形成过程的示意图，1、2、3、4……为绳上的一系列等间距的质点，相邻两质点间的距离均为10 cm，绳处于水平方向。质点1在外力作用下沿竖直方向做简谐运动，带动2、3、4……各个质点依次上下振动，把振动从绳的左端传到右端。t=0时质点1开始竖直向上运动，经过0.1 s第一次达到最大位移，这时质点3开始运动。

①该波的波长为和波速分别为多少？

②求波由1质点传到第20个质点的时间。

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