在光纤接入技术中.PTTH的中文含义是【 】。

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问题:

在光纤接入技术中.PTTH的中文含义是【 】。

考点:计算机等级考试网络技术计算机三级(网络技术)32
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世界上唯一独自占有一个大陆的国家是(  )

A.澳大利亚

B.印度

C.加拿大

D.丹麦

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无色透明溶液能与铝作用放出氢气, 此溶液中一定能大量共存的离子组是(    )

A.Cl-、SO42-、Na+、K+

B.K+、Cu2+-、Na+、NO3-

C.HCO3-、Na+、NO3-、K+

D.NO3-、Ba2+、Cl-、NH4+

题型:填空题
Angels
My friend Heather mentioned that she had never seen an Angel. Then I remembered the 36  I had with my sister Sandra earlier this week.
This will be Sandra’s first Christmas without her husband. This summer he died in her arms. On Thursday, she was in the store  37  for an ideal card for her two sons and daughter. Time passed by quickly as she  38  the many choices. She wanted a card that sent something special to each of them,  39  she knew they would have a(n)  40  place in their heart this holiday season.
Finally! She found the one that expressed the  41 feeling. The words expressed the feelings that she wished to share. However, a sharp pain pierced(穿透) her heart when she realized that the card was  42 “mom and dad.” She stood there,  43  it close for a long time, unable to move from the  44  . Tears began to run down her cheeks.
“Is there something I can do for you?” a  45  voice asked. She  46  to face a stranger, a woman, who was looking at her with  47  and concern. “Uh…oh...OH!” Sandra responded, “I can’t give this card to my children because…because my husband died and this is the  48  card.”
Hearing this, the stranger’s face softened with sympathy(同情) and love. She reached out and 49  my sister into her arms, giving her unspoken permission to cry in the protection of her embrace(拥抱). She  50  held my sister until her calmness 51  . “Thank you for listening to me cry on,” was what my sister said when all was better. “You are welcome, and I am so sorry for your  52 ,” the stranger answered and said goodbye to her.
During her telling of this event I was feeling  53  that I hadn’t been there. My sister needed me and a stranger had to do my  54  .  “You know,” she went on, “a friend suggested that it was like meeting with an Angel.” My  55  disappeared in an instant. My sister required an Angel, and I think that is exactly what she got.
36.
A. conversation
B. difficulty
C. accident
D. quarrel
37.
A. paying
B. caring
C. calling
D. looking
38.
A. left
B. offered
C. read
D. discovered
39.
A. although
B. as
C. when
D. if
40.
A. other
B. empty
C. safe
D. different
41.
A. sad
B. strange
C. amazing
D. perfect
42.
A. for
B. to
C. from
D. by
43.
A. seizing
B. holding
C. keeping
D. grasping
44.
A. spot
B. stair
C. area
D. home
45.
A. firm
B. proud
C. cold
D. soft
46.
A. walked
B. turned
C. decided
D. woke
47.
A. question
B. shock
C. regret
D. upset
48.
A. harmful
B. special
C. wrong
D. right
49.
A. pulled
B. caught
C. sent
D. protected
50.
A. quietly
B. tightly
C. strongly
D. seriously
51.
A. disappeared
B. went
C. arrived
D. returned
52.
A. failure
B. idea
C. loss
D. death
53.
A. shocked
B. angry
C. happy
D. hopeless
54.
A. task
B. time
C. favor
D. job
55
A. responsibility
B. sympathy
C. guilt
D. hurt
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公信力

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亚急性感染性心内膜炎最常见的病原菌是

A.金黄色葡萄球菌
B.肺炎球菌
C.草绿色链球菌
D.真菌
E.衣原体

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