可使物料瞬间干燥的是 A.
冷冻干燥 B.
沸腾干燥 C.
喷雾干燥 D.
减压干燥 E.
鼓式干燥

单项选择题Which industry characteristic most likely has a positive effect on a company’s ability to service debt?A.Low barriers to entry in the industryB.High number of suppliers to the industryC.Broadly dispersed market share among large number of companies in the industry.

单项选择题2.高温下依靠黏性液体流动而致密化是大多数硅酸盐材料烧结的主要传质过程（）。 A、正确 B、错误