问题 单项选择题

压力开关正常时为,异常报警时为()

A、常闭状态,关闭状态

B、常闭状态,断开状态

C、常开状态,闭和状态

D、常开状态,断开状态

答案

参考答案:B

判断题
阅读理解

阅读理解。

     English-speaking people say many "thank you"s every day. Early in the morning, when (当…的时候) a teacher

asks a student, "Good morning. How are you?" his answer should be, "I'm fine, thank you. And you?" This is the

first"thank you" of a day.

     When you hear, "Your skirt is nice." you say, "Thank you. I'm happy you like it." At your birthday party,

when people give you something and say, "This is for you. Happy birthday!" you also answer, "Thank you."

     When your friend helps you clean the classroom after school, you say "Thank you" to him.

     When you hear people say to you "Your English is very good." How do you answer it?

1.When a teacher asks you in the morning, "Did you have a happy night yesterday? " your answer is ____

A. "Thank you."                

B. "Yes, I did. Thank you."

C. "I'm fine, thank you."          

D. "How about you?"

2. When people say to an English girl, "You look beautiful today." she will say "___________"

A. Yes, I'm always beautiful.      

B. No, not at all.

C. Do you think so?              

D. Thank you. I'm happy to hear it.

3.  When someone says "Thank you" to you, your answer is "_________________"

A. Not at all.                    

B. That's OK.

C. It's all right.              

D. A、B or C.

4.  When you need some help, you will say, "_________"

A. Would you please help me?

B. Who will help me?

C. Thank you.

D. It's so kind of you.

5.  You don't say "Thank you" when _________

A. you hear someone say to you, "Your English is very good!"

B. someone gives you a present.

C. you meet an old friend of yours.

D. you hear people say "Good luck" (好运) to you .