When you finish reading the book, you will have ________ better understanding of ______ life.  [ ]

A. a; /

B. the; a

C. /; the

D. a; the

只有恒速干燥阶段，没有降速干燥阶段的干燥方法是（）

A.沸腾干燥

B.微波干燥

C.冷冻干燥

D.吸湿干燥

E.真空干燥