启动一次风机对二次风温的要求？
参考答案：
150℃。
洁净室内高效过滤器安装在≥（）级的洁净室内都必须经过泄漏检测。
A、2
B、3
C、4
D、5
By______, they mean that individuals of one culture have to go through the process of modification in attitudes, knowledge and behavior in order to function well in another culture.
A．Cognitive theory
B．Suggestopaedia
C．Acculturation theory
D．LAD
