From the last two sentences, we can see （）.
A: men have never found the nature of heat
B: men found the nature of heat in the 17th century
C: men found the nature of heat in the 19th century
D: men found the nature of heat before the 19th century
A: men have never found the nature of heat
B: men found the nature of heat in the 17th century
C: men found the nature of heat in the 19th century
D: men found the nature of heat before the 19th century
举一反三
- Not until the early years of the 19th century ___ what heat is.
- Between the 18th Century and 19th Century, social advancement for men was through the following careers except _________.
- The two men who Melissa caught were found guilty of ______.
- They are making a (heat) _______ discussion about whether men are braver than women.
- What kind of interventions in nature are usually taken when children are found to have behavior problems?