()是评定计量器具的计量性能的重要指标,是在规定工作条件内,计量器具某些性能随时间保持不变的能力。
A.准确度
B.稳定度
C.灵敏度
D.精确度
参考答案:B
用画线部分的反义词填空,使句意完整。
1. I am a tall man, she is a woman.
2. My hat is black, his hat is .
3. The girl is sad, the boy is .
4. I'm a boy, she's a .
5. Jim is my brother, Kate is my .
6. This is a new bike, that's an bike.
7. This glass of water is hot, that glass of water is .
8. This is my mother, that is my .
清洁能源包括()
A.太阳能、核能、水能、风能等
B.太阳能、水能、风能、潮汐能等
C.热能、水能、风能、潮汐能等
D.太阳能、热能、风能、水能