在分光光度法中,常用()调节分光光度计的吸光度为0,然后测定试样溶液或标准溶液的吸光

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问题:

在分光光度法中,常用()调节分光光度计的吸光度为0,然后测定试样溶液或标准溶液的吸光度值。

A、显色剂

B、参比溶液

考点:化学分析工考试化学分析工综合练习化学分析工综合练习题库
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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,写在答题纸相应的位置。选项中有两项为多余选项。

I was ten when I first sat with my grandmother behind the cashier(收银台)in her general store.      小题1:        I quickly learned the importance of treating customers politely and saying “thank you.”

At first I was paid in candy.       小题2:       I worked every day after school, and during the summer and on weekends and holidays from 8 a.m. to 7 p.m. My father helped me set up a bank account.     小题3:By the time I was 12, my grandmother thought I had done such a good job that she promoted me to selling cosmetics(化妆品). I developed the ability to look customers directly in the eye. Even though I was just a kid, women would ask me such things as “What color do you think I sho uld wear?” I took a real interest in their questions and was able to translate what they wanted into make-up ideas.   小题4:      .

The job taught me a valuable lesson: to be a successful salesperson, you didn’t need to be a Rocket scientist—you needed to be a great listener.    小题5:     and expect they are no longer women purchasing cosmetics from me; instead, they are kids who tell me which toys they would like to see designed and developed.

A.Later I received 50 cents an hour.

B.Before long, she let me sit there by myself.

C.I ended up selling a record amount of cosmetics.

D.Today I still carry that lesson with me: I listen to customersE. My grandma’s trust taught me how to handle responsibility.

F. Soon I found myself looking more beautiful than ever before.

G. Watching my money grow was more rewarding than anything I could have bought.

题型:单项选择题

建立企业管理信息系统的基础性工作是首先应该建立企业的 【11】 

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社会保障制度的建立,正是促使社会成员的需要获得满足并由低级向高级转移的良好的社会机制。可见,帕森斯的需求层次论确实可以充当社会保障理论与政策的重要基石。()

题型:单项选择题

建设期利息应计入( )。

A.建设投资

B.固定资产

C.固定资产原值

D.流动资金

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2009年10月,孙某开车行驶至其所在公司附近的路口时,路边一名男子称病请求孙某载他去医院。孙某见其言辞恳切,便让他上了车。上车后,那名男子主动谈车费,孙某没吭声,男子就叫停车,并掏出10元钱扔在驾驶台上,同时左手拔车钥匙,左脚踩刹车板。孙某还没有从一系列眼花缭乱的动作中回过神来,便看到从一辆车上跳下七、八个人,卡脖子、反扭手臂将他强行拖下车,并将其带至区交通执法大队。其间,一名戴“执法”臂章的人拿出一式三份的文件要孙某签字,但却用手捂住文件内容。孙某觉得自己本是做好事,却被视为违法,拒不签字,但最后因“内急”上厕所,只好签了字。随后,孙某被认定为“涉嫌非法营运”,并被给予扣车、行政罚款1万元的处分。孙某觉得冤枉,想申述事情原委,却不被听取。万般无奈之下,血气方刚的孙某砍掉了自己的手指头,以证清白。其实,此事件在A市不是个案,以往也曾多次出现过身穿便装的执法人员假装求助过往车辆顺道搭载而被实施处罚的现象。此类现象在当地被称为“钓鱼执法”,并引起了媒体的关注与社会舆论的强烈反响。A市政府责成区政府迅速查明事实,经调查,认定该区交通行政执法大队在执法过程中存在诸多问题。为更好地规范行 * * 力,接受社会监督,强化依法行政,区政府将调查结果公布于众,并向社会公众公开道歉,同时启动相应的问责程序,对直接责任人追究相应责任。问题:

结合案例,运用行 * * 力行使方式有限性的原理,分析“钓鱼执法”现象的错误所在。

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