[单选] In terms of pressure and temperature in the refrigerant in the compressor, what happens to the primary?（）
A . its pressure and temperature are both lowered B . its pressure and temperature are both raised C . its pressure is lowered and its temperature is raised D . its pressure is raised and its temperature is lowered
什么是电流继电器、电压继电器和中间继电器？中间继电器的作用是什么？
客户投诉管理工作应遵循的原则是（） 客户体验至上、真实准确完整。 客观公平公正、处理投诉协调配合。 积极主动、密切配合。 上述A、B。
工业化阶段以（）为先导，区域工业兴起，并逐渐成为推动区域经济增长的主导力量。 矿业。 制造业。 工商业。
规划的基本方法（）。 组织方法。 技术方法。 新技术应用。
“四统一”设计的分相操作箱有哪些功能？
In terms of pressure and temperature in the refrigerant in the compressor, what happens to the primary?（）
