侦查人员在杀人案件现场收集到一封信和一张字条，信的内容与案件无关，但根据通信对方的姓名和地址查出了犯罪分子。字条的内容也与案件无关，但根据笔迹鉴定找到了字条的书写入，从而发现了犯罪分子。对于本案中的信件和字条属于何种证据种类，下列表述中哪一项是正确的
A．信件是物证，字条是物证
B．信件是物证，字条是书证
C．信件是书证，字条是物证
D．信件是书证，字条是书证
参考答案：C
解析：根据信件上所记载的对方姓名和地址查出了犯罪嫌疑人，说明信件是通过其记载的内容起作用的，所以是书证。而字条，则是通过鉴定字条上的字迹查出字条的书写入从而为破案提供线索的，这里起作用的是其外部特征，所以是物证而不是书证。因此，本题的正确选项是C。
| Read and choose. 阅读短文，选出正确答案。 |
| Look! This is our classroom. It's not too big or too small, but very clean and nice. It has two doors and six windows. The doors are white and the windows are green. There are thirty-two chairs and desks in the classroom. They are blue. In front of the big blackboard is our teacher's desk. Miss Zhang is working beside the desk. There are many exercise books (练习本) on the desk. We love Miss Zhang. She is a good teacher. You can see a lovely clock above the blackboard. It looks like a bear. Mmmm...What time is it now? It's 3:40 in the afternoon. We're having a computer class in the computer room. We are not in our room now. |
| 1. — How is the classroom? —It's . |
[ ] |
| A. too big B. too small C. clean and nice |
| 2. — How many windows are there in the classroom? — There are . |
[ ] |
| A. two B. six C. thirty-two |
| 3. — What colour are chairs and desks? — . |
[ ] |
| A. White B. Green C. Blue |
| 4. Who is in the classroom? |
[ ] |
| A. Miss Zhang. B. The class. C. Nobody. |
| 5. — What time is it now? — It's . |
[ ] |
| A. four thirty B. three forty C. three thirty |