升华干燥
参考答案：
将食品迅速冷冻，并置于真空条件下，使水不经过水蒸汽直接因冰而脱水干燥的干燥方法。
advertisements are of great help, I don't think we should entirely rely on them. [ ]
A. Since
B. While
C. Because
D. As
反映企业经营成果的会计要素是______、______和______。
