蒸发器结霜过厚，使压缩机吸入来蒸发的液体造成（）过低
参考答案：吸气温度
太阳黑子的温度与周围光球相比（）
（）is software about the relation between the customer and the supplier in marketing.
A.Customer Relationship Management
B.Customer service
C.Sales planning
D.Distribution channel
