从植物药材浓缩水提取液中除去多糖、蛋白质等水溶性杂质的方法为_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

从植物药材浓缩水提取液中除去多糖、蛋白质等水溶性杂质的方法为

A．水-醇法
B．醇-水法
C．醇-醚法
D．醇-丙酮法
E．酸-碱法

答案

参考答案：A

问答题简答题

党员教育的基本原则是什么？

单项选择题

Questions 14-23

·Look at the ten statements for this part.
·You will hear a story about communication through time.
·Decide whetheryou think each statement is right(R) wrong(W) or not mentioned(NM).
·You will listen to it twice.
·Markyour answers on the Answer Sheet.

The time chosen for the call doesn’t communicate its importance.

A. Right

B. Wrong

C. Not Mentioned