The mercury surface of the thermometer is at 38 degrees centigrade. A student uses the same thermometer to measure the questions of a, B and C. The results show that a is 38 degrees centigrade, B is 38.5 degrees centigrade and C is 39 degrees centigrade A. A's temperature must be abnormal B. B's questions must be abnormal C. three students' questions must be abnormal d. A's questions must be normal Explain the process of thinking

The mercury surface of the thermometer is at 38 degrees centigrade. A student uses the same thermometer to measure the questions of a, B and C. The results show that a is 38 degrees centigrade, B is 38.5 degrees centigrade and C is 39 degrees centigrade A. A's temperature must be abnormal B. B's questions must be abnormal C. three students' questions must be abnormal d. A's questions must be normal Explain the process of thinking

Choose B
Because if the thermometer doesn't swing, it can't go down~
A's temperature is 38 ~ if a's temperature is 37, it's still 38 ~ so there may be something wrong with a
The normal temperature of a person is about 37, so there must be something wrong with B,
Student C added 0 on the basis of student B. so student B has more problems!