第一篇:大工12秋《專業英語(計算機英語)》在線測試1、2、3
大工12秋《專業英語(計算機英語)》在線測試
1一、判斷題:
1.B2.B3.B4.B5.A6.B7.A8.B9.A10.A
二、單選題:
1.D2.A3.A4.B5.B6.B7.B8.A9.A10.B
11.A 12.C13.A14.B15.A16.B17.A18.A
19.A20.D
大工12秋《專業英語(計算機英語)》在線測試
2一、判斷題:
1.B2.B3.A4.B5.B6.B7.B8.A9.B10.B
二、單選題:
1.D2.A3.A4.C5.D6.B7.B8.B9.A10.A
11.A 12.A13.C14.A15.B16.A17.B18.C
19.D20.A
大工12秋《專業英語(計算機英語)》在線測試
3一、判斷題:
1.B2.B3.B4.B5.B6.B7.A8.B9.A10.B
二、單選題:
1.A2.B3.D4.A5.D6.B7.B8.A9.C10.A
11.C 12.B13.A14.B15.B16.A17.B18.C
19.A20.A
第二篇:大工12春《大學英語3》在線測試1
大工12春《大學英語3》在線測試1
一,單選題
1.It is not an ________ method to learn a language by focusing on a large vocabulary only.A.effect
B.affectionate
C.efficient
D.affected
正確答案:C
2.Although he failed in his attempts, his mother's __________ drove him on to continue his efforts.A.motivation
B.encouragement
C.intention
D.compulsion
正確答案:B
3.Since this road is wet and slippery this morning, it _________ last night.A.must rain
B.was raining
C.must have rained
D.may rain
正確答案:C
4.Coal was formed out of dead forests by a long and slow _______ of chemical change.A.press
B.procedure
C.success
D.process
正確答案:D
5.They got a ________ result, and they were wild with joy.A.magic
B.magician
C.magnetic
D.magical
正確答案:D
6.It's important for you to make a list of your tasks in order of _______ when you work on a project.A.suggestion
B.goal
C.priority
D.tip
正確答案:C
7.His words are _________ but the meaning is deep.A.few
B.a few
C.little
D.a little
正確答案:A
8.He had often dreamed of retiring in England and had planned to ________ down in the country.A.break
B.come
C.put
D.settle
正確答案:D
9.The young ________ interested in pop music.A.is
B.have
C.has
D.are
正確答案:D
10.He is not a child __________.A.no more
B.no longer
C.any much
D.any more
正確答案:D
11.His salary as a driver is much higher than __________.A.a porter
B.is a porter
C.that of a porter
D.as a porter
正確答案:C
12.I don't know ________ to deal with such matter.A.what
B.how
C.which
D./
正確答案:B
13.We all know that there are ________ ways of getting to know a person.A.varying
B.variety
C.various
D.various of
正確答案:C
14.We often see Henry ________ English aloud every morning in the classroom.A.read
B.reads
C.reading
D.to read
正確答案:A
15.Tom was once cheated by his friend;________ he would not trust anyone.A.hence
B.since
C.nevertheless
D.however
正確答案:A
16.From a practical point of ________, it isn't a good place to live.It is crowded and heavily polluted.A.view
B.look
C.opinion
D.value
正確答案:A
17.How much has the company ________ this year?
A.brought in
B.brought down
C.brought out
D.brought about
正確答案:A
18.Success is not won ________.It takes patience, diligence and continuing efforts.A.twilight
B.attentively
C.currently
D.overnight
正確答案:D
19.The bridge was named _______ the hero who gave his life for the cause of the people.A.after
B.for
C.because of
D.before
正確答案:A
20.In 1958 Marian Anderson ________ her country as a United Nations delegate.A.served
B.was served
C.to serve
D.serving
正確答案:A
二,判斷題
1.We did the research as good as we could;however, it did not turn out to be satisfactory.A.錯誤
B.正確
正確答案:A
2.It was about 600 years ago that the first clock with a face and an hour hand was made.A.錯誤
B.正確
正確答案:B
3.The only way to influence others is to talk about what they want and show them how to get it.A.錯誤
B.正確
正確答案:B
4.If you wish to remain healthy, you should drink several glasses of the water every day.A.錯誤
B.正確
正確答案:A
5.Since their beginning, human survival has depended on their interaction with the
environment.A.錯誤
B.正確
正確答案:B
6.His best movie, which won several awards, was about the life of Gandhi.A.錯誤
B.正確
正確答案:B
7.Everyone was in his room when the bell rings.A.錯誤
B.正確
正確答案:A
8.Somehow, in the panic, the crew of the airplane were able to rescue nearly all of the passengers.A.錯誤
B.正確
正確答案:B
9.The relationship consists of a general pattern of human interference and its corresponding environmental modification.A.錯誤
B.正確
正確答案:B
10.Having spent his childhood in France, John is able to converse in French rather good.A.錯誤
B.正確
正確答案:A
第三篇:大工12秋《機械工程測試技術》在線作業2
大工12秋《機械工程測試技術》在線作業2
一、單選題(共 10 道試題,共 60 分。)
1.在工作電流為20mA,磁感應強度B=0.1T的情況下,集成霍爾元件的輸出達()mV。
A.25B.35
C.15D.5
2.機械式傳感器中,彈性元件的蠕變與()、載荷大小、環境溫度等因素有關。
A.材料應力-松弛B.內阻尼
C.承載時間D.彈性后效
3.可以獲得最大靈敏度的電橋接法是()。
A.單臂電橋接法B.半橋接法
C.全橋接法D.以上都不正確
4.對普通使用的濾波器,濾波器因數λ一般為()。
A.1-2B.2-3
C.1-5D.2-5
5.下列屬于壓電陶瓷材料的是()。
A.石英B.鈮酸鋰
C.酒石酸鉀鈉D.鈦酸鋇
6.為研究超精密切削機床運動部件的定位精確度往往要求測量精確度在()um范圍內。
A.0.1-0.01B.1-0.01
C.0.1-0.001D.0.1-1
7.目前,數字示波器的帶寬已達到()以上。
A.1GHzB.1MHz
C.1THzD.1KHz
8.一般來講,利用光電效應、壓電效應等物性傳感器,響應較(),可工作頻率范圍()。
A.快,窄B.慢,寬
C.快,寬D.慢,窄
9.下列不屬于光纖傳感器按調制方式分類的是()。
A.頻率調制B.電壓調制
C.相位調制D.偏振調制
10.不屬于頻率調制振蕩電路的是()。
A.LC振蕩電路B.變容二極管調制器 C.壓控振蕩器D.電感振蕩器
二、判斷題(共 10 道試題,共 40 分。)
()1.數字示波器不可觀測觸發前的信號狀況。
()2.電橋按其所采用的激勵電源的類型可以分為直流電橋與交流電橋。
()3.有源濾波器一般使用運算放大器結構。
()4.半導體應變片的工作原理基于半導體材料的熱阻效應。
()5.機械式指示儀表一般用于檢測緩變或靜態被測量。
()6.光電傳感器工作基礎是光電效應。
()7.實際的傳感器的響應延遲時間越長越好。
()8.磁電式傳感器的工作原理不可逆。
()9.圖像傳感器是一種小型的固態集成元件,它的核心部分是CCD。
()10.控制高頻振蕩的低頻信號叫載波。
答案:在線作業2
單選題:ACCCDAACBD判斷題:ABBABBAABA
第四篇:大工12秋《機械工程測試技術》在線作業1
大工12秋《機械工程測試技術》在線作業1
一、單選題(共 10 道試題,共 60 分。)
1.以下不屬于表述周期信號的強度的值是()。
A.峰值B.相對均值
C.有效值D.平均功率
2.二階系統測量裝置的阻尼比一般選在()之間。
A.0.6-0.8B.0.6-0.7
C.0.5-0.6D.0.5-0.7
3.矩形窗函數的時域窗寬T變大,則主瓣寬度()。
A.不變B.變大
C.變小D.變化不定
4.()是一種不能準確預測其未來瞬時值,也無法用數學關系式來描述的信號。
A.隨機信號B.準周期信號
C.瞬變非周期信號D.連續信號
5.一階系統的激勵頻率ω遠小于1/τ時,其A(ω)值接近于()。
A.1/4B.1/3
C.1/2D.1
6.下列不屬于測量裝置在測量過程中受到的環境干擾的是()。
A.電磁場B.電源
C.聲D.光
7.下列不屬于供電系統的抗干擾措施的是()。
A.交流穩壓器B.高通濾波器
C.隔離穩壓器D.獨立功能塊單獨供電
8.電壓表的示值Vi為30V,而電壓實際值Vt為30.5V,則電壓表的示值誤差等于()。
A.0.5VB.-0.5V
C.0.25VD.-0.25V
9.描述各態歷經隨機信號的主要特征參數不包括()。
A.均值B.概率密度函數
C.自相關函數D.互相關函數
10.對于二階裝置,在ω=ωn處,輸出對輸入的相角滯后為()。
A.0°B.30° C.60°D.90°
二、判斷題(共 10 道試題,共 40 分。)
()1.測試系統的中間變換裝置可將被測物理量檢出并轉換為電量。
()2.測試技術是進行各種科學實驗研究及生產過程參數測量必不可少的手段,起著人的感官的作用。
()3.一般使用理想直線的斜率作為測量裝置的靈敏度值。
()4.瞬時功率對時間積分,就是信號在該積分時間內的能量。
()5.低通濾波器可用來濾去小于50Hz市電基波的高頻干擾。
()6.對系統的突然加載或突然卸載可視為施加階躍輸入。
()7.隨機過程可分為平穩過程和非平穩過程。
()8.在實踐中,可以獲得理想的單位脈沖輸入。
()9.周期信號的頻譜應該是連續的。
()10.時域周期單位脈沖序列的頻譜并不是周期脈沖序列。
答案:在線作業1
單選題:BACADBBBDD判斷題:ABBBABBAAA
第五篇:大工12秋《數控技術》在線作業1~3答案
大工12秋《數控技術》在線作業11 2 3 4 5 6 7 單選題BC B D D多選題 ACD AC AB ACD ABCD判斷題 B A B B B A A
大工12秋《數控技術》在線作業21 2 3 4 5 6 7 單選題 A B D A A多選題 AB ABC ABC AD AB判斷題 B A A A A B A
大工12秋《數控技術》在線作業31 2 3 4 5 6 7 單選題 D D D A A多選題AB AC AB AC ACD判斷題 B A A B B B A8 9 10A B A 8 9 10B A B 8 9 10B B B