OT试验常用溶液浓度是A.1:1000 B.1:2000 C.1:4000 D.1:

题型:单项选择题

问题:

OT试验常用溶液浓度是

A.1:1000

B.1:2000

C.1:4000

D.1:8000

E.1:12000

考点:护士护理考试专业知识儿科护理学小儿结核病的护理
题型:单项选择题

有失去标签的A、B、C、D四瓶溶液,它们的成分可能是Na2CO3、K2SO4、Ba(NO3)2、NaHSO4中的某一种,进行下列实验:

(1)A+C→溶液①+气体①    (2)B+A→溶液②+沉淀①

(3)C+B→溶液③+沉淀②    (4)溶液③+沉淀①→溶液④+气体①

根据上述实验结果,写出上述过程的离子方程式:

(1)                                                          

(2)                                                           

(3)                                                           

(4)                                                            

题型:单项选择题

阅读下面短文,根据短文内容,完成文后各问题的答语。

Mary was an operator 911 in Los Angeles . One Thursday morning, she was surprised to get a call from a young child who said, “Mom my ill, Mom my ill”, again and again. Mary hurried to find the address of the call. She called the police, In a minute, the policemen and doctors arrived at the house. They broke the door open, and they couldn’t believe their eyes. The little child was so young that maybe she could not walk. She was sitting beside her mother and holding her mother’s hand. Tears were running down her face.

The doctor gave the woman some medicine and soon she woke up. Later, she told people , “Everyone was surprised that my daughter could call 911 . On Monday morning I tried to teach her how to call 911 but she couldn’t do it. ” Mary was surprised, too.

小题1:How did Mary feel when she got a call from a young child?

She felt___________________________.

小题2:Who found the house soon.

The __________and the __________did.

小题3:How did they enter the child’s house.

By ____________________the __________________.

小题4:Was the little child able to walk or not.?

The little child was __________________________.

小题5:How old was the little girl?

She was probably ____________old.

题型:单项选择题

患者,男,48岁。背部生疮,初起肿块上有一粟粒样脓头,抓破后局部肿痛加剧,色红灼热,脓头相继增多,溃后如蜂窝状,伴有寒热头痛,纳呆,便秘,溲赤,舌质红,苔黄,脉弦数。其诊断是()

A.疔

B.疱

C.有头疽

D.发

E.痈

题型:单项选择题

欲从苯酚的乙醇溶液中分离苯酚和乙醇,有下列操作:

①过滤

②蒸馏

③静置分液

④加入足量的金属钠

⑤加入足量的NaOH溶液

⑥通入过量的二氧化碳

⑦加入足量的FeCl3溶液

⑧加入乙酸与浓硫酸混合液加热。

合理的实验操作步骤及顺序是(  )

A.④⑤③

B.⑥①⑤③

C.⑧①⑦③

D.⑤②⑥③

题型:单项选择题

做:“互成角度的共点力合成”实验,实验步骤如下:

⑴ 在水平放置的木板上,固定一张白纸。

⑵ 把橡皮筋的一端固定在O点,另一端拴两根带套的细线,细线和橡皮筋的交点叫做结点。⑶ 在纸面离O点比橡皮筋略长的距离上标出A点。

⑷ 用两个弹簧秤分别沿水平方向拉两个绳套,把结点拉至A点,如图所示,记下此时两力F1F2的方向和大小。

⑸ 改用一个弹簧秤沿水平方向拉绳套,仍把结点拉至A点记

下此时力F的方向和大小。

⑹ 撤下弹簧秤和橡皮筋。

⑺ 在A点按同一标度尺,作F1F2F力的图示。请你写出下面应继续进行的实验步骤,完成实验。

                                                            

                                                            

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