问题
单项选择题
以为固定相的TLC按作用机制属于
A.吸附色谱
B.离子交换色谱
C.胶束色谱
D.分子排阻色谱
E.亲和色谱
答案
参考答案:A
以为固定相的TLC按作用机制属于
A.吸附色谱
B.离子交换色谱
C.胶束色谱
D.分子排阻色谱
E.亲和色谱
参考答案:A
A. be a close relative of the dead. B. send hundreds of dollars to Africa C. go to African Development Bank for the wealth D. not take it seriously. 2. Which of the following is true according to the text? A. Many millionaires died in the plane crash. B. Any money unclaimed will be given to a poor foreigner. C. the division of the money seems quite reasonable. D. AFRICAN DEVELOPMENT BANK doesn’t exist at all. 3. A person who believes “__________” will fall into it. A. Nothing ventured, nothing gained. B. There's no such thing as a free lunch. C. All rivers run into the sea D. A short cut is often a wrong cut |