滴定分析中,若怀疑试剂已失效,可通过()方法进行验证。A、仪器校正B、对照分析C、空

题型:单项选择题

问题:

滴定分析中,若怀疑试剂已失效,可通过()方法进行验证。

A、仪器校正

B、对照分析

C、空白实验

D、多次测定

考点:化学分析工考试中级化学分析工中级化学分析工题库
题型:单项选择题

There once was a very wealthy and successful man. He had more money than he could ever spend, and he was admired and looked up to by his community. __1___ He wasn’t happy. All his life he had been looking for happiness and striving for happiness.___2____

Then one day he heard about a hidden temple in Nepal that had a special room that contained the secret of happiness.___3___ After many years of searching and countless hardships he arrived there. He was tired and penniless, but he knew that none of that mattered now because he had found the temple. He asked a wise, smiling monk if he could enter the special room. The monk agreed and showed him the stairs leading to the room. ___4___ He stared into the room with sunlight steaming through the window and saw what he had come so far to find. There hanging on the wall was the secret of happiness. The man gazed at his reflection in the mirror and laughed.

__5__ Happiness is a choice that we can make. Don’t spend the rest of your life searching the world for happiness then. Just look in the mirror and laugh. Just let the happiness flow from your heart, mind, and soul until it fills your life and the lives of all those around you.

A. He immediately sold all that he owned and set out to find this hidden temple

A. It was difficult to find the temple in Nepal.

C. No one found the secret of happiness at last.

D. But he knew that something was missing in his life.

E. But he had never been able to find it.

F. He climbed them with legs shaking with expectation and slowly opened the door.

G. It is time that we all realized that we were the secrets of our own happiness

题型:单项选择题

联合收割机收获水稻时对损失率的要求是()。

A、小于3%

B、为3%

C、小于3.5%

D、小于2.5%

题型:单项选择题

()按照规定对基金管理人的会计核算进行复核并出具复核意见。

A.基金托管人

B.基金销售机构

C.注册登记机构

D.基金设计的会计事务所

题型:单项选择题

想要做好三农信贷的营销工作,需要积极推进产品、机制与()创新。

A.模式

B.服务

C.观念

D.目标

题型:单项选择题

关系数据库的关系演算语言是以 为基础的DML语言。

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