患者，男，40岁，教师。不规则发热、腹泻、进行性体重下降4个月。因血友病多次输注血制

发布时间：2020-04-21 05:18 │ 来源：www.tikuol.com

题型：单项选择题 A3/A4型题

问题：

患者，男，40岁，教师。不规则发热、腹泻、进行性体重下降4个月。因血友病多次输注血制品。查体：唇周苍白，口腔黏膜布满白色膜状物，四肢大关节畸形。血常规：WBC2.5×10/L.Hb70g/L。

该患者最可能的诊断是（）

A.结核病

B.伤寒

C.艾滋病

D.疟疾

E.肾综合征出血热

考点：中医全科主治医师常见传染病常见传染病题库

题型：单项选择题 A3/A4型题

可引起呼吸困难的中毒包括（）。

A.大量食用苦杏仁

B.亚硝酸盐中毒

C.吗啡中毒

D.地高辛中毒

E.氨茶碱过量

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题型：单项选择题 A3/A4型题

某干细胞研究小组人员从人的皮肤细胞中提取出细胞核，然后将其植入去核的牛卵母细胞中，从而培育出混合胚胎。该胚胎发育到第三天时已含有32个细胞，可从中提取胚胎干细胞供医学研究使用。下列说法错误的是 [ ]

A．该胚胎干细胞的遗传物质主要来自人的细胞核

B．体外培养的条件下，胚胎干细胞可以增殖而不发生分化

C．混合胚胎发育到第三天时已分化为滋养层和内细胞团

D．混合胚胎的基因组成中有少量来自牛的卵母细胞的线粒体

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题型：单项选择题 A3/A4型题

安全生产禁令（看图解说禁令相关内容）：

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题型：单项选择题 A3/A4型题

完形填空。
If I Were a Boy Again If I were a boy again.I would practice perseverance(毅力)more often,and never give up a thing.If we want__1__,we must conquer(征服)darkness.Perseverance can sometimes __2__genius in its results."There are only two__3__,"says a proverb,"Who can surmount (到……顶)the pyramids-the eagle and the snail." If I were a boy again,I would school myself into a habit of__4__；I would let nothing come between me and the subject in hand.I would remember that a good skater never tries to skate in two__5__at once. The habit of attention becomes part of our__6__,if we begin early enough.I often hear grownup people say,"I could not__7__attention to the book,although I wished to do so"． The reason is that the habit was not__8__in youth. If I were to__9__my life again,I would pay more attention to the cultivation(培养)of the__10__.It takes a little hard work at first to remember things accurately,but memory soon__11__itself,and gives very little trouble.It only needs early__12__to become a power. If I were a boy__13__,I'd cultivate courage.Nothing is so mild and gentle as courage； nothing is so cruel and pitiless as cowardice(怯懦)．Life is very much like a__14__:If you smile upon it,it smiles back upon you；but if you frown(皱眉)and look doubtful on it,you will get a__15__look in return. Finally,if I were a boy again,I would look on the cheerful side.I'd still try harder to make others happy.
( )1．A.success ( )2．A.explore ( )3．A.creatures ( )4．A.attention ( )5．A.ways ( )6．A.perseverance ( )7．A.focus ( )8．A.formed ( )9．A.enjoy ( )10．A.lifestyle ( )11．A.loses ( )12．A.habit ( )13．A.over again ( )14．A.fire ( )15．A.familiar	B．hope B．equal B．birds B．studies B．feet B．result B．gather B．got B．plan B．memory B．helps B．education B．over there B．song B．similar	C．light C．overcome C．persons C．customs C．shoes C．genius C．give C．schooled C．live C．personality C．wastes C．cultivation C．over and over C．poem C．different	D．freedom D．bury D．heroes D．mind D．directions D．life D．pay D．gained D．consider D．perseverance D．takes D．courage D．again and again D．mirror D．bad

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题型：单项选择题 A3/A4型题

网络安全技术研究主要涉及3个方面的内容：安全攻击、安全机制和______。

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