图片交换沟通系统训练技术（）应用行为分析中的具体技术。
参考答案：不属于
就持仓量的数量来说，当多头开仓同时多头平仓时，持仓量减少。（）
It is reported that the latest outbreak of the bird flu in Pennsylvania in the United States has prompted China to slap a ban on poultry imports from the state.()
A. marine products
B. dairy products
C. industrial products
D. avian products
