Take the best choice from the following four answers, please.
1. Chief complaint consists of ________.
a. history of present illness
b. biographical data
c. main symptom(s) and duration
d. all symptom(s) or signs
2. The feature of physical signs is ________.
a. subjective disturbance
b. patient's feeling
c. objective finding
d. as same as symptom
3. The temperature of high fever is ________.
a. 37.4~38°C
b. 38.1~39°C
c. 39.1~41°C
d. above 41°C