紫外光谱分析中所用比色皿是()。 A.玻璃材料的 B.石英材料的 C.萤石材料的 D

题型:单项选择题 A1/A2型题

问题:

紫外光谱分析中所用比色皿是()。

A.玻璃材料的

B.石英材料的

C.萤石材料的

D.陶瓷材料的

E.不锈钢材料的

考点:理化检验技术(师)相关专业知识相关专业知识题库
题型:单项选择题 A1/A2型题

阅读下面短文,根据短文内容判断句子的正误。正确“A”,错误“B”。

     When I was a boy, I didn't have any hair on my head. So I was very shy. I liked to watch my friends

play in the park. Sometimes I would join them, but most of the time I just watched them play.

     Every day, we would see an old man walking in the park. He had big ears and no hair. We thought he was

dumb (哑的). Every time when my friends saw him, they would say loudly, "Hey, Mr. Dumb, what's the

time?" But they got no answer.

     One early evening, I was standing outside my house, and I saw the old man coming. I was not with any

of my friends and there were no other kids around to say the usual words of "greeting (问候)".

     But how could I let the old man walk by without saying anything? So for the first time, I asked, "Hey,

Mr. Dumb, what's the time?"

     The old man looked at me. Then he looked at his watch and answered, "It's six thirty." I ran into my

house and never said that "greeting" to the old man after that day.

( )1. The boy often played with his friends together.          

( )2. The boy's friends were very polite to the old man.       

( )3. Neither the boy nor the old man had any hair on the head.

( )4. Actually, the old man could hear and speak.              

题型:单项选择题 A1/A2型题

直角三角形中两边长为3、4,第三边长为(     )。

题型:单项选择题 A1/A2型题

在干部选拔任用上,要贯彻好习 * * 关于好干部的五条标准,树立起()的用人导向,做到“在赛场上选马”。

A.实在

B.实干

C.实绩

D.实效

题型:单项选择题 A1/A2型题

中国近代史而言,与中国关系最为密切、最为复杂,对中国近代历史影响最大、最深远的国家关系是()

A、A中美

B、B中日

C、C中俄

D、D中印

题型:单项选择题 A1/A2型题

“一户通”实时业务受理时间为每日(),法定节假日除外。

A、8:00-16:00

B、8:00-16:30

C、8:30-16:00

D、8:30-16:30

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