皮皮学，免费搜题
登录
搜题
【单选题】
在一定的 pH值和温度条件下,改变体系的离子强度而进行的盐析方法,称为:
A.
Ks分级盐析法
B.
β分级盐析法
C.
盐析沉淀法
D.
等电点沉淀法
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】Which of the following statements is NOT true, according to the passage?
A.
One third of the world's population drinks coffee.
B.
Coffee is native to Colombia.
C.
Coffee can keep one awake.
D.
Coffee drinks were first made by Arabs.
查看完整题目与答案
【简答题】Nowadays computers can do ______.
查看完整题目与答案
【简答题】The author is of the opinion that Coleman’s beliefs are ________. A) biased B) popular C) insightful D) superficial
查看完整题目与答案
【简答题】American are consuming ______nowadays.
查看完整题目与答案
【单选题】Which one is NOT true according to the video?
A.
If you have only one acceptable outcome in mind, your chances of making it are slim.
B.
When confronted by problems, entrepreneurs rise to the occasion. Challenges motivate them to work harder.
C.
Entrepreneurs are always accepted.
D.
Many people recognize marketplace holes, but the true entrepreneur takes them from cocktail napkin to reality
查看完整题目与答案
【单选题】Exchange of business cards___ quite popula
A.
have become
B.
become
C.
became
D.
has become
查看完整题目与答案
【单选题】Which one is true?
A.
Hanfei is China’s greatest legalist philosopher
B.
Mencius belongs to School of the Way
C.
Romance of Three Kingdoms is one of The Five Classics
D.
Mencius advocate School of the Law
查看完整题目与答案
【单选题】Which of the following is TRUE of Spaceship One?
A.
Spaceship One is the world's first spacecraft.
B.
The purpose of its flight is to collect money for the charity.
C.
The purpose of its flight is to compete for a prestigious space travel prize.
D.
Spaceship One has never flown.
查看完整题目与答案
【简答题】Wooden basket was used but nowadays it is ______.
查看完整题目与答案
【简答题】Nowadays, there’s a lot of debate about single education since it has begun to regain its popularity recently. According to long term studies of children from around the world, students achieve mo...
查看完整题目与答案
相关题目：
【单选题】Which of the following statements is NOT true, according to the passage?
A.
One third of the world's population drinks coffee.
B.
Coffee is native to Colombia.
C.
Coffee can keep one awake.
D.
Coffee drinks were first made by Arabs.
查看完整题目与答案
【简答题】Nowadays computers can do ______.
查看完整题目与答案
【简答题】The author is of the opinion that Coleman’s beliefs are ________. A) biased B) popular C) insightful D) superficial
查看完整题目与答案
【简答题】American are consuming ______nowadays.
查看完整题目与答案
【单选题】Which one is NOT true according to the video?
A.
If you have only one acceptable outcome in mind, your chances of making it are slim.
B.
When confronted by problems, entrepreneurs rise to the occasion. Challenges motivate them to work harder.
C.
Entrepreneurs are always accepted.
D.
Many people recognize marketplace holes, but the true entrepreneur takes them from cocktail napkin to reality
查看完整题目与答案
【单选题】Exchange of business cards___ quite popula
A.
have become
B.
become
C.
became
D.
has become
查看完整题目与答案
【单选题】Which one is true?
A.
Hanfei is China’s greatest legalist philosopher
B.
Mencius belongs to School of the Way
C.
Romance of Three Kingdoms is one of The Five Classics
D.
Mencius advocate School of the Law
查看完整题目与答案
【单选题】Which of the following is TRUE of Spaceship One?
A.
Spaceship One is the world's first spacecraft.
B.
The purpose of its flight is to collect money for the charity.
C.
The purpose of its flight is to compete for a prestigious space travel prize.
D.
Spaceship One has never flown.
查看完整题目与答案
【简答题】Wooden basket was used but nowadays it is ______.
查看完整题目与答案
【简答题】Nowadays, there’s a lot of debate about single education since it has begun to regain its popularity recently. According to long term studies of children from around the world, students achieve mo...
查看完整题目与答案