Which of the following events could cause an increase in the supply of ceiling fans?
选项:
A:The number of sellers of ceiling fans increases.;
B:There is an increase in the price of air conditioners, and consumers regard air conditioners and ceiling fans as substitutes.;
C:There is an increase in the price of the motor that powers ceiling fans.;
D: All of the above are correct.
发布时间:2024-04-14 22:09:12