将PC机组成以太局域网必须用到网卡、中继器和集线器等设备，其中的一种设备可用来对接收

发布时间：2017-01-16 03:23 │ 来源：www.tikuol.com

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问题：

将PC机组成以太局域网必须用到网卡、中继器和集线器等设备，其中的一种设备可用来对接收到的信号进行再生放大，扩大网络的传输距离，并通过它来连接网络中的各个结点机，把一个端口接收到的信息向所有的端口分发出去，这种网络设备是______。

考点：计算机等级考试 PC技术三级PC技术笔试

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给多音字注音，组词。

奇（）薄（）

（）（）

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完形填空。

     Every year on my birthday, from the time I turned twelve, a white gardenia was delivered to my house.
No card or note came with it. Calls to the flower shop were always useless - it was a cash    1 . After a
while I stopped trying to  2   who the sender was and just delighted in the beautiful and perfume of the
white flower. But I never   3 imagining who the sender might be. Some of my   4 moments were spent
daydreaming about it.
     My mother asked me whether there was someone for whom I had done a(an)   5 kindness who might
be showing   6 . Perhaps the neighbor I helped when she was  7   a car full of groceries. Or maybe it was
the old man across the street whose mail I helped to get during the   8 so he wouldn't have to venture
down his icy step. As a teenager, though I had more fun guessing that it might be a   9 who had noticede
even though I didn't know him.
     One month before my high school graduation, my father died of a heart attack. He was missing some
of the most important events in my life. I became completely   10   in my upcoming graduation and the
dance. When my father died, I   11 the dance and the dress for it. The day before the dance, I found a
dress on the sofa. I didn't   12   if I had a new dress or not, but my mother did.
     She wanted her children to feel   13 and lovable, imaginative, believing that there was a  14   in the
world and beauty in the face of hard times. Actually mother wanted her children to see themselves much
like the gardenia -lovely,   15 and perfect. The gardenia stopped coming when my mother died.

(     )1. A. service
(     )2. A. recognize
(     )3. A. failed
(     )4. A. saddest
(     )5. A. special
(     )6. A. concern
(     )7. A. repairing
(     )8. A. spring
(     )9. A. friend
(     )10. A. disappointed
(     )11. A. forgot
(     )12. A. wonder
(     )13. A. contented
(     )14. A. trouble
(     )15. A. strong

B. deal
B. imagine
B. stopped
B. painful
B. common
B. attitude
B. washing
B. summer
B. superman
B. uninterested
B. lost
B. believe
B. respected
B. magic
B. beautiful

C. bargain
C. wonder
C. succeeded
C. happiest
C. valuable
C. interest
C. unloading
C. autumn
C. teacher
C. discouraged
C. hated
C. care
C. thanked
C. tragedy
C. smelly

D. offer
D. discover
D. enjoyed
D. loneliest
D. important
D. appreciation
D. starting
D. winter
D. boy
D. concentrated
D. expected
D. know
D. loved
D. comedy
D. lucky

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按接触物性质和浓度不同，接触性皮炎分为（）及（）两大类。

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哮病缓解期的肺肾两虚证，以肺气阴两虚为主者，应加用的药物是（）

A.黄芪、沙参、百合

B.桂枝、白芍、制附片

C.桃仁、苏木

D.黄芩、前胡、瓜蒌皮

E.桂枝、细辛

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男性，66岁，高血压病10年，劳力性心前区疼痛2年。平时活动量稍大或上三楼时出现胸部疼痛，休息缓解。近1个月发作频繁，1～2次/天，约15分/次，休息时也有发作。发作时心电图ST段压低

为了确定诊断，首先考虑的检查是

A．PSA

B．膀胱镜

C．B超

D．静脉肾盂造影

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