In practice, the refrigerant flow after the evaporator is designed to ensure that the vapor leaving the evaporator is slightly (). ["saturated","super-cooled","wet","superheated"]
共同生活在某个生态系统中的一种跳鼠和体型与它相近的一种蜥蜴相比较,跳鼠的() ["营养级较高","种群较稳定","能量同化率较高","能量摄入量较多"]
积碳是一种() ["不燃物","易燃物","难燃物"]
简述毛管虫病的感染途径。
资本成本一般用资金成本率表示,它是筹资费用与用资费用之和与筹资总额的百分比。()
低温烧结有哪些优点?