[问答题] 画出三相变压器Yyn0（同极性）相量图。

允许员工定期地轮换所做的工作，给员工提供更丰富、更多样化的工作内容，这样的工作设计方法称作（）。 ["工作扩大化","工作丰富化","工作职务轮换","工作人性化"] The bulb for the thermal expansion valve is located（） ["in the middle of evaporator coils","near the evaporator coil outlet","near the evaporator coil inlet","on the bottom row of evaporator coil"] 微机继电保护投运时应具备哪些技术文件？ 空间差异性：区域（）性的鲜明特点之一，就是各个城镇之间经济活动表现出空间差异性。 ["经济空间差异","环境空间差异","区域空间差异"] The thermal expansion valve responds to the（） ["amount of superheat in the vapor leaving the coil","amount of superheat in the liquid","temperature in the evaporator coils","pressure in the evaporator coil"] 画出三相变压器Yyn0（同极性）相量图。