试题与答案

下列是学习行为的是[ ] A.狗吃食物分泌唾液 B.狗见到主人就摇尾巴 C.初生

题型:选择题

题目:

下列是学习行为的是[ ]

A.狗吃食物分泌唾液

B.狗见到主人就摇尾巴

C.初生的兔子碰到母兔,就有寻找 * * 和吸吮的动作

D.公鸡清晨在一定时间鸣叫

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A解析:非比例再保险分为超额赔款再保险(超额赔款分保)和超额赔付率再保险(超额赔付率分保)。以一定时期(一般为一年)的积累责任赔付率为基础计算责任限额,即当实际赔付率超过约定的赔付率时,超...

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题型:完形填空
通读下面短文掌握其大意,然后在各题所给的四个选项(A、B、C和D)中选出最佳选项。
It was the golden season. I could see the   leaves falling with the cool wind. For others, it is a harvest season, ____ for me, it is an annoying(恼人的) season. I was     for the Postgraduate Entrance Examination. But so many unhappy things made me so tired, so I decided to have a walk along the Yanjiang Road in my university.
“Autumn is a lonely season and life is uninteresting. The days in this season always ___me down”, I thought when the sound of a guitar flowed into my ears, like a stream flowing from the mountains. A young girl, sitting on the lawn, was lost in playing her guitar. She was a beautiful girl,    when the wind blew her long hair. I had never seen her before. The music was so attractive that I listened quietly.
Lost in the music, I did not      that I had been standing for so long. But it did not seem to disturb(打扰) her. Leaves were still falling. Every day when I passed by the lawn, I would see her playing her guitar. She was the only performer and I was the only    . During the rest of the days in the season, life became     and I could review the courses carefully.
Autumn was      over. One day, when I was enjoying the beautiful music, the sound suddenly stopped. To my surprise, the girl came over to me.
“You      like the music,” she said.
 “Yes, you play very well. Why did you stop?” I asked.
Suddenly, a    expression appeared on her face.
 “I came here just to have a rest because I      in the college entrance examination. I felt very disappointed(失望的). And it was your listening every day that     me,” she said, “and I have to go tomorrow.”
“In fact, it was your playing that gave me a    autumn and helped me believe that I have the ability to pass the Postgraduate Entrance Examination.” I answered, “I think it was God who gave us the      to know each other and we should be good friends.”
She smiled and I smiled in that beautiful autumn..
小题1:
A.yellowB.greenC.newD.empty
小题2:
A.thenB.whileC.andD.or
小题3:
A.goingB.waitingC.preparing D.caring
小题4:
A.getsB.getC.to getD.is getting
小题5:
A.mainlyB.speciallyC.mostlyD.especially
小题6:
A.understandB.realize C.rememberD.consider
小题7:
A.audienceB.artistC.reporterD.dancer
小题8:
A.boringB.interestingC.sadD.dull
小题9:
A.nearlyB.hardlyC.alreadyD.just
小题10:
A.mayB.wouldC.canD.must
小题11:
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小题12:
A.failedB.sentC.brokeD.took
小题13:
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小题14:
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小题15:
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题型:单项选择题

下列关于PET空间分辨率的描述,错误的一项是()

A.PET系统对一个点源的成像扩展为一个分布,该分布称为点扩展函数(PSF)

B.PSF的FWHM越大,点源的扩展程度越大,分辨率越低

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E.两个湮灭光子的运动方向偏转角呈高斯分布,偏转角的半高宽为0.3

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