发射光谱半定量分析有哪些具体方法？_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题问答题

发射光谱半定量分析有哪些具体方法？

答案

参考答案：

通常有四种方法：（1）显现法（2）比较光谱线法（3）均称线对法（4）阶数法

完形填空

One man was to meet his wife downtown and spend some time shopping with her. He waited 36 for 15 minutes. Then he waited impatiently for 15 minutes more. After that, he became 37 . When he saw a photograph booth (照相亭) nearby, he had 38 . He wore the most unhappy expression he could manage, which was not 39 in the situation. In a few moments, he was holding four small photos that 40 even him.
He wrote his wife’s name on the back of the photos and handed them to a 41 behind the desk in the booth. “ 42 you see a small, dark lady with brown eyes and an apologetic expression, obviously 43 someone, would you please give her this?” he said. He then 44 his office in Morrison Building, 45 that if a picture is worth a thousand words, then the four photos must be a good 46 ! He sat down with a smile.
His wife 47 those pictures. She carries them in her purse now and shows them to anyone who asks if she is married.
How are you with 48 ? One person calls it “wait training.” It seems that there is always something we are 49 . We wait on traffic and we wait in lines. We wait to hear about a new job. We wait to complete school. We wait for someone to change his or her mind.
Patience is an important 50 of a happy and rewarding life. 51 , some things are worth waiting for. 52 presents many opportunities for wait training.
We can hate waiting, 53 it or even get good at it! But one thing is 54 --- we cannot avoid it. How is your 55 coming along?

B．respectfully

A．looking for

B．working for

C．sending for

B．returned to

B．disappointed

A．description

B．preparation

B．your family

D．determination

B．waiting for

A．For example

D．Every office

B．interesting

A．photo taking

B．job hunting

C．decision making

D．wait training

填空题

在使用现金浮游量时，一定要控制使用时间，否则会发生银行存款的（）。