定期更换外置的置换液细菌滤过器，严格按照厂家规定的使用寿命，一般使用（）次。 A.5

发布时间：2021-01-13 16:33 │ 来源：www.tikuol.com

题型：单项选择题

问题：

定期更换外置的置换液细菌滤过器，严格按照厂家规定的使用寿命，一般使用（）次。

A.50-100

B.60-100

C.80-130

D.100-150

E.150-200

考点：医疗卫生知识血液透析血液透析题库

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The first day at school has left a deep ___ on me.I'll never forget it.
As soon as I rushed into the classroom，the bell rang.A young beautiful woman came in，but she was ____，no smile on her face.“You are not permitted to ____ me in the course of class unless...”She was speaking when I heard a____“Lily，Lily”from outside the door.My grandmother was standing there with a pair of socks in her hand.I didn't realize I was bare feet____ then.I wanted to ____ them.but I dared not do that.I shook my hand，____“Don't wait here any longer.Leave quickly.”As I did so，I still ____my eyes on my teacher.I really didn't want her to take ____ of me，but she did.She went out to get the socks.When she gave them to me，she looked at me for a while.My face suddenly turned ____ and my heart ____ faster.I began to put the socks on.Unfortunately I was so nervous that my ____ hands couldn't get them onto my feet easily.Just then I heard my name called.I ____ from my seat quickly.“Can you ____the numbers from one to one hundred？” the teacher asked.I nodded. ____her surprise，I did very well.Finally she said，“Be ___， please.Study hard.”I looked ____ her to find a smile on her face.I felt ____ at last.
The first day at school has stayed in my ____ as something embarrassing(尴尬)but ___.

C．imagination

C．disappointed

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题型：单项选择题

鉴别稀盐酸和稀硫酸，应选用的试剂是（）

A．紫色石蕊溶液

B．氯化钡溶液

C．硝酸银溶液

D．酚酞试液

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题型：单项选择题

判断D是导通还是截止，并求电压U_AO（忽略D的正向压降）（）。

A．截止；-0.6V

B．截止；0.6V

C．导通；-0.6V

D．导通；0.6V

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题型：单项选择题

下列城市中，服务范围可扩展至全国的是（）

A.北京

B.南京

C.武汉

D.广州

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题型：单项选择题

P、O、R、S、T是一家大型多国公司5个海外办公室的计算机。计算机为了提高资料的安全性以特殊形式联结。资料只能：(1)由Q直接从P得到；(2)由T直接从P得到；(3)由P直接从Q得到；(4)由P直接从R得到；(5)由T直接从S得到；(6)由R直接从T得到；(7)由Q直接从S得到。假如一台计算机能够从另一台计算机直接请求得到资料，那么，它也能通过那台计算机传递对资料的请求。

下列哪一个不能向其他4个计算机请求资料

A．P

B．Q

C．R

D．S

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