哪些有机物质会干扰溶解氧的测定?

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问题:

哪些有机物质会干扰溶解氧的测定?

考点:化验员考试化验员考试题库
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对话填空(共10小题,每小题1分,满分10分)

Jack-J; Laura-L

J: I’d like to mail this box to Hong Kong. How much will it be, please?

L: Do you want to send it first class or second class?

J: How much is first class and how (76)l      does it take?                               小题1:  

L: It’s a light box. First class would cost $ 8.20. I(77)g     it                                  小题2:    

will take about eight to ten days to arrive.

J: And second class?

L: Sending it second class would be (78) c      ,                                             小题3:    

but it wouldn’t arrive (79)u     about a month from now. You’ll pay $ 4.90 only.小题4: 

J: Oh, I want it to arrive (80)e     than that. I’ll mail it first class.                           小题5:    

L: What’s in the box? I need to know in order to(81) c      the form.               小题6:    

J:A(82)s       of glasses.                                            小题7:   

Are there any other forms I need to fill out because it’s going to a foreign country?

L: Yes , one more. You have to write clearly what is in the box and the (83) v      小题8:

J: Here it is.

L: You forgot to put a return address on this box. It’s not a post office rule,

but we usually (84)a   people that all mail have a proper return address.                小题9:

J: OK. I’ll do it right now. I’ll also buy ten 60-cent stamps.

L: Let’s see. The box and the stamps. Your (85)t      bill comes to $ 14.20.       小题10:  

J: Thank you.

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在2010年上海世博会期间,上海市区中小学开展了“知荣辱、讲礼貌、迎世博”文明礼貌小使者大赛,在市区出现了一批“讲礼貌,传礼仪”的好少年典型。这表明“文明礼貌” [ ]

①显示了一个人的内心修养和文化素养,关系国家、民族的尊严

②礼貌反映我们自身的素质,展示我们的风采

③对人不礼貌,会造成对他人的伤害,妨碍与人交往

④对我们青少年学习、交往意义不大

A.①②④

B.②③④

C.①③④

D.①②③

题型:问答题 简答题

对比剂过敏反应循环衰竭的处理是()

A.暂停或减慢注射,必要时口服异丙嗪25mg或肌注地塞米松10mg

B.皮下注射1‰肾上腺素0.5~1.0ml,或氨茶碱0.25mg加10%葡萄糖10ml注射

C.静脉或肌内注射盐酸苯海拉明20mg,或肌内注射异丙嗪25mg

D.加大剂量注射

E.换用其他种类对比剂

题型:问答题 简答题

国内特快专递邮件起重资费为,起重()克及以内20元。

A、200

B、300

C、400

D、500

题型:问答题 简答题

①在进行过滤操作时,需用到的玻璃仪器是____________

②在进行分液和配制物质的量浓度溶液时,首先要分别对分液漏斗、容量瓶进行_______

③用一种试剂除去NaCl溶液中含有的CuCl2,写出所用试剂及反应的离子方程式除杂试剂:          (写化学式) 离子方程式:____________、_____________________          

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