山东师范大学
第一章单元测试
- Mixtures and pure substances can be separated by physical.（ ）
- Celsius is the unit of the temperature.（ ）
- Systematic errors caused by limitations in an experimenter's skill or ability to read a scientific instrument. （ ）
- In physical change, some of the physical properties of the sample may change, and its composition changed.（ ）
- There is a temperature at which °C and °F have the same value.（ ）
A:对 B:错
答案:对
A:对 B:错
答案:对
A:错 B:对
答案:错
A:对 B:错
答案:对
A:对 B:错
答案:对
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