家庭经济状况属于( )。
A．消费者自身因素B．消费者相关群体因素C．企业形象因素D．客观因素
参考答案：A
接触线的拉出值的大小由什么决定？
Jolene began building a picket fence by planting stakes in a row; the stakes were evenly spaced. After planting the first 10 stakes, Jolene measured the length of the row and found that the row was 27 feet long. She continued the row by planting another 10 stakes, then measured the length of the entire row. How many feet long was the row of stakes Jolene had planted
A．37
B．54
C．57
D．60
E．(E) 81
