反馈有哪些种类?

题型:问答题 简答题

问题:

反馈有哪些种类?

考点:新闻学与传播学传播学传播学题库
题型:问答题 简答题

Once, the famous scientist Einstein travelled to many places in America to give lectures. He travelled in a __1__, and soon made friends with his driver.
Each time Einstein gave the lecture, his driver __2__ sat in the front row and listened to him very carefully. The __3__ lecture was given so many times that the driver learned it well enough to give it himself.
One day, when Einstein was __4__ about it, he asked the driver to give the lecture for him in a small town.
That evening, both Einstein and the driver went into the lecture room. __5__ there had seen Einstein before. When the driver took his place, everybody applauded (鼓掌). Then he began the lecture. __6__ it was over, the people warmly applauded. The driver turned to look at Einstein. Einstein nodded with a smile on his face.
When they began to leave the lecture room, a man __7__ them and asked the driver a very
__8__ question. The c river listened carefully, then he __9__ and said the question was interesting but really quite easy. To show how easy it is. I'll ask my __10__ to answer it," said the driver.
小题1:
A.busB.train C.planeD.car
小题2:
A.always B.never C.sometimesD.hardly
小题3:A. different  B. same       C. uncomfortable  D strange
小题4:A. spoken     B. told       C. said            D shouted
小题5:
A.Somebody B.Everybody C.Nobody D.Anybody
小题6:
A.If B.AlthoughC.HoweverD.When
小题7:
A.carriedB.believedC.stoppedD.pleased
小题8:
A.difficult B.easy C.relaxingD.perfect
小题9:
A.smiled B.cried C.refused D.jumped
小题10:
A.studentB.driverC.teacherD.uncle
题型:问答题 简答题

一只标有“220V 40W”的灯泡L1和一只标有“110V 40W”的灯泡L2,若将它们接入电路时都能正常发光,灯L1、L2两端的电压分别用U1、U2表示,则下列说法中正确的是(  )

A.两灯实际功率相同,U1>U2,I1<I2

B.两灯额定功率相同,U1>U2,I1>I2

C.两灯是并联在同一电路中的

D.两灯是串联在同一电路中的

题型:问答题 简答题

下列溶剂中极性最弱的是()

A.乙醚

B.乙醇

C.丙酮

D.甲醇

E.乙酸乙酯

题型:问答题 简答题

保证翻垡型铧式犁不产生回垡现象的理论翻垡系数临界值是()。

题型:问答题 简答题

在图像识别技术方面,通过图像识别技术判断设备运行状态,对()等情况进行分析和预警。

A.绝缘材料损坏

B.电晕

C.短路

D.覆冰

E.污秽

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