测得某物体的温度为50℃,试问物体的热力学温度为多少?
参考答案:
T=t+273.15=50+273.15=323.15(K)
根据所给情景,选出最适合的一项,请将标号写在题前括号中。
1. [ ]
A. Who are you?
B. What are you?
C. How are you?
D. Is that Jane speaking?
2. 当老师问“Is everyone here today?”时,哪种回答才对?[ ]
A. Yes, we do.
B. Yes, I am.
C. No, Tom is not here.
D. I am on duty today.
3. [ ]
A. What is she doing?
B. How is she?
C. Where is she?
D. How old is she?
4. Tom: Where is my bike?
Sherry: Is it a green one?
Tom: Yes, it is.
Sherry: Look. _____________
Tom: Yes. Thank you very much.[ ]
A. Is that one?
B. Here you are.
C. I don't know.
D. What is that?
5. — How are you?
— ______________.[ ]
A. It's fine
B. It is loudly
C. It is rainy
D. I am fine
在大批量和大量生产中,常采用______原则。
A.工序集中
B.工序分散
C.工序集中和工序分散混合使用