物料中最易除去的水分是非结合水。
参考答案：对
He is amazingly cheerful considering all that he has .
A．looked through
B．gone through
C．broken through
D．seen through
壳聚糖常在哪种精制方法中使用( )
A．水醇法B．醇水法C．吸附澄清法D．大孔树脂精制法E．超滤法
