某患者女,60岁,头晕,贫血近一年。外周血检查:Hb75g/L,RBC2.9×101

题型:单项选择题 A1/A2型题

问题:

某患者女,60岁,头晕,贫血近一年。外周血检查:Hb75g/L,RBC2.9×1012/L,HCT0.26,ESR32mm/h,血涂片可见红细胞大小不均,中央淡染区扩大。红细胞直方图曲线所显示应为()。

A.主峰左移,RDW正常

B.主峰左移,RDW增宽

C.主峰右移,RDW正常

D.主峰右移,RDW增宽

E.主峰正常,RDW正常

考点:临床医学检验技术(士)临床检验基础临床检验基础题库
题型:单项选择题 A1/A2型题

在抽样研究中,若σ为定值,随着样本例数逐渐增大,则

A.样本标准差减小

B.当n趋近无穷大时,标准差降至0

C.标准误减小

D.标准误波动范围增大

E.标准误、标准差都不改变

题型:单项选择题 A1/A2型题

小星发现铜制的钥匙比铝制的重,于是他认为“铜比铝重”.小星所说的“铜比铝重”其实是指(  )

A.铜的体积比铝大

B.铜的密度比铝大

C.铜的硬度比铝大

D.铜受到的浮力比铝大

题型:单项选择题 A1/A2型题

Monday — 9:00 p.m.

I love to answer questions about children’s health. Some questions and their answers become articles, FAQ’s, Updates, Fast Facts, Top Tips, or Guidelines here on the site. I answer others in real time during chat. Either way, here is how to submit a question.

I am available live, for one hour, every weekday. No appointments are necessary! All you have to do is log on to chat and ask your question. In most cases, you’ll get your answer right there! Some of the questions from chat are selected for me to write about in greater depth. Even if you don’t have time to stay at chat, send your question to the chat host to be considered for a future article.

Please join me in chat, Monday — November 22, 2009 at 9:00 p.m.

I will urnbe in the chat room for one hour to answer your children’s health questions. To ask your question, please type a “?” mark on the screen. A host will call upon you when it is your t to ask a question.

Click here to chat.

Click here to learn more about chat.

Click here for a complete chat schedule.

72. The writer is probably ________.

A. an advertiser      B. a lawyer       C. a teacher       D. an adviser

73. If you want to have a talk, you have to _______.

A. wait patiently           B. write to the author in advance

C. be on the line            D. make an appointment

74. Which is NOT true according to the passage?

A. The writer sometimes writes questions into an article.

B. The writer can be visited on Monday — November 22.

C. The talker has to type a “?” mark on the screen.

D. Anyone who asks questions must come to the chat room.

75. The chat with the writer on the screen _______.

A. lasts a long time            B. must be about children’s health questions

C. has to be called on Monday   D. will become articles to be published

题型:单项选择题 A1/A2型题

据拉扎斯菲尔德等学者的研究,意见领袖()。

A.未必是大人物

B.社交范围较广

C.信息渠道较多

D.频繁接触大众传播

E.存在于特定的社会阶层

题型:单项选择题 A1/A2型题

绝大多数食用菌有菌柄,其着生位置有:1)中央生,2)侧生和3)偏生等。蘑菇和平菇菌柄的着生位置分别为()。

A.中央生和侧生

B.侧生和中央生

C.偏生和偏生

D.中央生和中央生

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