下列房地产活动中，不属于房地产咨询活动的是（）
A.房地产市场调查
B.房地产营销策划
C.房地产销售代理
D.房地产市场信息分析
参考答案：C
August 8 was declared as National Fitness Day, when various events to encourage people to take more physical exercise.
A．held
B．were held
C．had held
D．have been held
测定新鲜氢气湿度的采样点，宜设置在制氢站进口管段上（）
