[听力原文]
W: Are these treatments really necessary They don’t seem to help much.
M: I’m afraid so, Mrs. Jones. Just be patient and I’m sure you’ll see some results soon.

Where did this conversation most probably take place（）

单项选择题A person is generally believed to achieve personal growth when（）

A．he has given up his smoking habit
B．he has made great efforts in his work
C．he is interested in making anything new
D．he has tried to determine where he is on his journey

单项选择题Our information about the population of the earth before the first century after Christ comes mainly from（）

A．estimates based on current population growth
B．references in literature and mythology
C．estimates based on previous population growth
D．written records and cultural remains