下列有关OTDR的使用，说法正确的是（） A.平均时间越长，信噪比越高，曲线越清晰

发布时间：2018-10-08 11:02 │ 来源：www.tikuol.com

题型：单项选择题

问题：

下列有关OTDR的使用，说法正确的是（）

A.平均时间越长，信噪比越高，曲线越清晰

B.脉宽越大，功率越大，可测的距离越长，分辨率也越高

C.脉冲宽度越大，盲区越小

D.分别从两端测，测出的衰减值是一样的

考点：移动通信专业技术移动家客L1认证考试移动家客L1认证考试题库

题型：单项选择题

女性患者，50岁。腹腔积液半年，5天前反复呕血、黑便，经抢救治疗后好转，近2日来嗜睡，定向力下降。

该患者昏迷后，家属迫切希望患者立即清醒，可给予的药物是（）。

A.氟马西尼

B.苯巴比妥

C.苯妥英钠

D.异丙嗪

E.氯苯那敏

F.吗啡

查看答案

题型：单项选择题

在“卿今强健，我欲死，何忍无急去药，以待不祥”中，“去”的意义是（）

A.收藏

B.舍弃

C.去掉

D.离开

E.以上都不是

查看答案

题型：单项选择题

完形填空。

     The D-word, it's most people's worst fear, but, in a bittersweet way, it was my greatest joy. In divorce,
you gain something and you   1   something.
     I'm thirteen years old, and I know what it   2   like when parents split up, because mine did last fall.
     My parents had been   3   for years. When my father started cheating my mom things went downhill, I   4
they would divorce instantly. I tried to picture my life after my parents   5   up-living at my mom's house during
the week, and my father's house on the weekend. But my mom decided to be the bigger person and try to   6
it out, so that my siblings and I would know   7   it was like to have a family. Things didn't get better,   8  .
     I would always strain to hear the quiet   9 they didn't want me to hear. They weren't getting along and they
weren't happy,
     My father has never really been there for me. He was there physically but not emotionally. He yelled a lot and
never really showed any  10  in going to my piano recitals or watching my dance performances,  11  we asked
him to do and he had another  12 -a lie. We just ignored it and went on with our lives as if nothing was the
matter.
     Then last summer, there was real  13  in paradise. My siblings and I want out to Los Angeles to pursue acting
and while we were out there, my father  14  my mom again, and this time my brother, sister, and I all found out.
We decided to stay in L.A and leave my father in Florida.
     Our 15  resulted in divorce. We didn't know if we were making the right  16  or not. My mom went back and forth. She wanted what was best for her children. She asked me if I thought we should go back to Florida or stay
in Los Angeles, I replied mom "There is nothing in Florida for us any more. Out here in L.A, we have so many
  17 , that can come true. We shouldn't let him abuse us any more." Finally, we are free.
     The  18  was the best thing that had ever happened to me and the rest of my family. I now know that taking
chances is the best thing to do. I accept that  19  doesn't always. If, in your heart, you can feel something that is
not right, then follow your heart. In the end it's going to be your only true guide, to have and to hold, for richer
or poorer, your heart will never  20  you down.

( )1.A. lose
( )2.A. smells
( )3.A. happy
( )4.A. hoped
( )5.A. got
( )6.A .keep
( )7.A. how
( )8.A. though
( )9.A. talk
( )10.A. dislike
( )11.A. Everything
( )12.A. explanation
( )13.A. happiness
( )14.A. cheated
( )15.A. words
( )16.A. Judgment
( )17.A. dreams
( )18.A. experience
( )19.A. prejudice
( )20.A .get

B. enjoy
B. feels
B. satisfied
B. wished
B. split
B. run
B. that
B. however
B. conversation
B. care
B. Something
B. excuse
B. puzzle
B. beat
B. actions
B. plan
B. imagination
B. divorce
B. preference
B. set

C. give
C. sounds
C. unhappy
C. doubted
C. looked
C. stick
C. which
C. meantime
C. argurments
C. concern
C. Nothing
C. reason
C. difficulty
C. trusted
C. thoughts
C. decision
C. realities
C. conflict
C. love
C. put

D. own
D. looks
D. unsatisfied
D. thought
D. stood
D. speak
D. what
D. while
D. dialogue
D. interest
D. All thing
D. cause
D. trouble
D. scolded
D. ideas
D. arrangement
D. wishes
D. separation
D. hate
D. let

查看答案

题型：单项选择题

坑下人员休息、停留时，距掌子根部（）米之内。

A、4

B、5

C、6

查看答案

题型：单项选择题

无框眼镜如眼镜比较高档，校配时，错误的做法是（）。

A、不要硬性调整

B、要用专用工具

C、必要时，应松开螺丝，卸下镜片调整

D、必须用手调整

查看答案

更多题库