单选题The author's intention in writing the passage is to______.A praise the wisdom of the old peopleB advise people to be patientC analyze the danger of heart diseasesD persuade people to be trustful
题目
单选题
The author's intention in writing the passage is to______.
A
praise the wisdom of the old people
B
advise people to be patient
C
analyze the danger of heart diseases
D
persuade people to be trustful