下面关于局域网特点的叙述中,不正确的是______。 1、使用专用的通信线路,数据

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问题:

下面关于局域网特点的叙述中,不正确的是______。 1、使用专用的通信线路,数据传输速率高 2、能提高系统的可靠性、可用性 3、响应速度慢 4、通信时间延迟较低,可靠性好 5、不能按广播方式或组播方式进行通信

A.2、4

B.3、5

C.2、3

D.1、5

考点:计算机等级考试网络技术三级网络技术笔试27
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急性牙髓炎的疼痛特点为

A.冷热刺激痛,持续时间短暂,无自发痛
B.自发性痛,热刺激加剧,冷刺激痛减轻,疼痛能定位
C.自发性、阵发性夜间痛,疼痛呈放射状,疼痛不能定位
D.食物嵌塞痛,无自发痛
E.持续性钝痛、咬合痛

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按原文填空。

①海内存知己,______________。(王勃《送杜少府之任蜀州》)

②______________,蜡炬成灰泪始干。(李商隐《无题》)

③己所不欲,______________。(《论语》)

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患者男,65岁,因“家务劳动时突发右侧肩部疼痛”来诊。患者行走时患肢不能前后摆动,上臂内旋、屈肘时缓解。查体:右肩关节被动外展、外旋受限;右结节间沟压痛明显;右肩无肿胀;Yergason征(-)。X线片:右侧肱骨外科颈陈旧性骨折。

本病还可继发于()

A.胸大肌抵止部撕裂

B.肩胛下肌抵止部撕裂

C.肱骨结节间沟底部的骨质增生

D.肩关节脱位

E.先天性肱骨小结节发育不良

F.结节间沟上的横韧带撕裂

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心下型的完全型肺静脉异常回流超声所见()

A.四条肺静脉回流到冠状静脉窦

B.肺总静脉回流到上腔静脉

C.肺静脉回流到下腔静脉

D.肺静脉直接回流到右房

E.四条肺静脉回流到颈静脉

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What’s in a surname You may ask. A new website project has been released, that helps you (1) . Have you ever wondered why your ancestors gathered where they did, or where others with your surname live now A research project (2) in Britain answers these questions. And another study has found the surnames are (3) .
"Smith", for example, remains the most common surname in Britain. Used by (4) people, it has exactly the same concentration it always did in Lerwick, in the Scottish Shetland Islands. "Jones" is (5) , and is the most common among hill farmers (6) .
The data used for this project comes partly (7) . A number of other files are held by Expairing, which is probably Britain’s (8) .
There’ re some of us who are fairly predictable. "Campbell", for example, as you might expect, is somewhat concentrated (9) , and it appears really bizarre to be found anywhere else.
Well, with 25,000 names as (10) , what you can do is put them in general categories, if, for example, you look at (11) . Like the name Webber, you might find it is much more common in the Midlands than (12) . If you go to Wales, most people get their names (13) . And in Yorkshire for example, a lot of people have names (14) that they originally lived in or at least their ancestors did.
Well, we only have 25, 000 names on this website, but there’re (15) now found in Britain and they’ re particularly interesting, for (16) . Most British names are fairly common. And about what we can now do as such is look for (17) from different parts of the world and different faiths, (18) . And what there is in names is actually extremely useful, for researchers in (19) may find a lot about (20) now living in this country.

What’s in a surname You may ask. A new website project has been released, that helps you (1) . Have you ever wondered why your ancestors gathered where they did, or where others with your surname live now A research project (2) in Britain answers these questions. And another study has found the surnames are (3) .
"Smith", for example, remains the most common surname in Britain. Used by (4) people, it has exactly the same concentration it always did in Lerwick, in the Scottish Shetland Islands. "Jones" is (5) , and is the most common among hill farmers (6) .
The data used for this project comes partly (7) . A number of other files are held by Expairing, which is probably Britain’s (8) .
There’ re some of us who are fairly predictable. "Campbell", for example, as you might expect, is somewhat concentrated (9) , and it appears really bizarre to be found anywhere else.
Well, with 25,000 names as (10) , what you can do is put them in general categories, if, for example, you look at (11) . Like the name Webber, you might find it is much more common in the Midlands than (12) . If you go to Wales, most people get their names (13) . And in Yorkshire for example, a lot of people have names (14) that they originally lived in or at least their ancestors did.
Well, we only have 25, 000 names on this website, but there’re (15) now found in Britain and they’ re particularly interesting, for (16) . Most British names are fairly common. And about what we can now do as such is look for (17) from different parts of the world and different faiths, (18) . And what there is in names is actually extremely useful, for researchers in (19) may find a lot about (20) now living in this country.

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