（）适用于测量较低温度。A.热电偶 B.热电阻 C.辐射式温度计

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问题单项选择题

（）适用于测量较低温度。

A.热电偶

B.热电阻

C.辐射式温度计

D.红外线温度计

答案

参考答案：B

阅读理解

阅读理解。阅读下列的对话，选择正确答案。

A: Hi, Li Ming.

B: Hi, Mrs. Li.

A: What are you doing?

B: I'm reading a story book. What are you doing?

A: I'm writing a letter. May I look at your story book?

B: Certainly. Here you are.

A: Thank you.

1. What is Li Ming doing?[ ]

A. He's reading.

B. He's reading a story book.

C. He's writing.

D. He's playing football.

2. What is Mrs. Li doing?

A. She's reading.

B. She's drawing.

C. She's writing.

D. She's seeing.

3. What does Mrs. Li want to look at?[ ]

A. Story book.

B. Li Ming' s pen.

C. A bike.

D. A letter.

4. Does Li Ming give the story book to Mrs. Li?[ ]

A. Yes, he does.

B. No, he doesn't.

C. Yes, he is.

D. No, he isn't.

5. Is Jenny in this dialogue (对话)?[ ]

A. Yes, she is.

B. Yes, she does.

C. No, she isn't.

D. No, she can't.

解答题

直线AB上有11个站．那要印多少种不同的单程票，才能满足从11站中的任一站到另一站的需要呢？