市场细分因素中按地理因素细分的是（）
A、气候
B、人口
C、社会经济
D、社会文化
参考答案：A
----I thought I asked you to fix the radio.
----Oh, I am sorry. I ______ it right away.
A．am to do
B．will do
C．was about to do
D．am going to do
什么是电压互感器接线组别？
