
1、判断题:
Mixtures and pure substances can be separated by physical.( )
选项:
A:对
B:错
答案: 【对】
2、判断题:
Celsius is the unit of the temperature.( )
选项:
A:错
B:对
答案: 【对】
3、判断题:
Systematic errors caused by limitations in an experimenter's skill or ability to read a scientific instrument. ( )
选项:
A:对
B:错
答案: 【错】
4、判断题:
In physical change, some of the physical properties of the sample may change, and its composition changed.( )
选项:
A:对
B:错
答案: 【对】
5、判断题:
There is a temperature at which °C and °F have the same value.( )
选项:
A:对
B:错
答案: 【对】
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