The mercury of the thermometer is 38.5 degrees centigrade. When a student is not shaking it The mercury of the thermometer is at 38.5 degrees centigrade. If a student directly measures two patients with 36.5 degrees centigrade and 40 degrees centigrade without shaking, the readings of the thermometer are? A36 ℃ and 40 ℃, B is 40 ℃, C is 38.5 ℃, d38.5 ℃ and 40 ℃

The mercury of the thermometer is 38.5 degrees centigrade. When a student is not shaking it The mercury of the thermometer is at 38.5 degrees centigrade. If a student directly measures two patients with 36.5 degrees centigrade and 40 degrees centigrade without shaking, the readings of the thermometer are? A36 ℃ and 40 ℃, B is 40 ℃, C is 38.5 ℃, d38.5 ℃ and 40 ℃

analysis
If the thermometer doesn't swing, the indication can't go down
therefore
It's 38.5 and 40
D right

The mercury surface of the thermometer is at 38.5 degrees, and a student's body temperature is measured without shaking,
The first time is 38.5, the second time is 39.5, and the third time is 39.5. Which time is the most reliable? Ask for reasons and don't answer if you're not sure,

Second best
For the thermometer that has not been thrown, because the structure of the thermometer is particularly thin in the mercury bubble section, when the mercury rises, it will not fall if it is not thrown. Therefore, if it is measured again, the Mercury will only rise but not fall
For the first time, the temperature of the student may be lower than 38.5, but it will not drop, so it is not accurate
For the second time, it must be accurate because it is more than 38.5
The third time, the same as the first time, may be lower than 39.5

What is mercury in a thermometer made of?

Mercury is the only liquid metal at room temperature. So far, all metals are composed of atoms, that is, mercury is composed of mercury atoms