作业
1、【单选题】Which is the analog signal?
A、<img src="http://edu-image.nosdn.127.net/13281CD96686C257D6B8678A52F097B7.jpg?imageView&thumbnail=890x0&quality=100" />
B、<img src="http://edu-image.nosdn.127.net/643C7D6C1B1373C7705C499704D9E104.jpg?imageView&thumbnail=890x0&quality=100" />
C、
D、
课后作业
1、【单选题】Which is the digita signal?
A、<img src="http://edu-image.nosdn.127.net/B99E87C93AEB4B69DDA11A1E7B0FD6EE.jpg?imageView&thumbnail=890x0&quality=100" />
B、<img src="http://edu-image.nosdn.127.net/48FEF854EE7542FE1F65F5416AC635C6.png?imageView&thumbnail=890x0&quality=100" />
C、
D、
课后作业
1、【单选题】In series circuit ,the current flowing through each element is（ ）
A、of the same value
B、proportional to resistance
C、inversely proportional to resistance
D、
课后作业
1、【单选题】In parallel circuits, the current flowing through each element is ( )
A、of the same value
B、proportional to resistance
C、inversely proportional to resistance
D、
课后作业
1、【单选题】 what is IR drop?
A、the product of current and voltage
B、infrared radiation
C、investor relation
D、
课后作业
1、【填空题】What are the output of the logic gates?<img src="http://edu-image.nosdn.127.net/F3D464D9982341B1B37531F80C903420.png?imageView&thumbnail=890x0&quality=100" />
A、
课后练习
1、【单选题】Which is the signal generator ?
A、<img src="http://edu-image.nosdn.127.net/A02DF815EDBCBEC545501810D28102DA.jpg?imageView&thumbnail=890x0&quality=100" />
B、<img src="http://edu-image.nosdn.127.net/0F48F5665DD4B1C1571F452DBE20C9E9.jpg?imageView&thumbnail=890x0&quality=100" />
C、<img src="http://edu-image.nosdn.127.net/9D9E198C74A3D980A57EA7553FA55399.jpg?imageView&thumbnail=890x0&quality=100" />
D、
课后作业
1、【单选题】Which of the following statements is correct?
A、IC means integrated circuits
B、An IC places one electronic component on one substrate of silicon
C、
D、
课后作业
1、【单选题】What is the role of oxidation?
A、 wafer preparation
B、 prevent O2 diffusion.
C、growing
D、rounding
课后练习
1、【单选题】The process of package excludes ( )
A、wafer test
B、diffusion.
C、 die separation
D、 attach
课后练习
1、【单选题】The purpose of back grind is ( )
A、good looking
B、 testing
C、appropriate dimension.
D、 attach
课后练习
1、【单选题】Advanced packaging designs exclude ( )
A、MCM
B、BGA
C、WLP
D、DIP
课后练习
1、【单选题】Tranditional camera used film to capture image ,here film means ( )
A、电影
B、胶片
C、薄膜
D、
课后练习
1、【单选题】Which is not the characteristics of CCD?
A、high resolution
B、low image distortion
C、 low power consumption
D、
课后练习
1、【单选题】 Which one is amplitude modulation? ( )
A、<img src="http://edu-image.nosdn.127.net/8F0232E937CE658EBEE18CF85AE63A2A.jpg?imageView&thumbnail=890x0&quality=100" />
B、<img src="http://edu-image.nosdn.127.net/1DECAF1B91FB63C608087C1A8C3416B2.jpg?imageView&thumbnail=890x0&quality=100" />
C、<img src="http://edu-image.nosdn.127.net/7BB6BCCF2D30C5B4C39A2CE6D4D572C7.jpg?imageView&thumbnail=890x0&quality=100" />
D、
课后练习
1、【单选题】Which one is sky-wave propagation? ( )
A、<img src="http://edu-image.nosdn.127.net/0ADA2AC2243A0F3A5BDB6924A30F7682.png?imageView&thumbnail=890x0&quality=100" />
B、<img src="http://edu-image.nosdn.127.net/A7CB86324C47A204AB21877B4E2129CC.png?imageView&thumbnail=890x0&quality=100" />
C、<img src="http://edu-image.nosdn.127.net/DBB50412F62C5B86EE1EE4B326D246C1.png?imageView&thumbnail=890x0&quality=100" />
D、
课后练习
1、【单选题】 Which did not develop bluetooth technology?
A、Ericsson
B、Apple
C、Toshiba
D、Nokia
课后练习
1、【单选题】What is the operating distance of bluetooth technology?
A、10m
B、50m
C、100m
D、1000m
课后练习
1、【判断题】Bluetooth technology is free for all the people
A、正确
B、错误
课后练习
1、【单选题】In which structure can users communicate directly ( )In which structure can users communicate directly ( )
A、centerless structure
B、central structure
C、
D、
课后练习
1、【单选题】 Which device cannot be used to access WLAN ? ( )
A、Wireless network cards
B、wireless bridges
C、wireless antennas
D、HUB
课后练习
1、【单选题】Where can we use WLAN except ( )
A、in hospital
B、in restaurant
C、in house
D、in tunnel
课后练习
1、【单选题】Which is the oscilloscope ? ( )
A、<img src="http://edu-image.nosdn.127.net/9F38C1C6AEE899542774D7D5B201D4A5.jpg?imageView&thumbnail=890x0&quality=100" />
B、<img src="http://edu-image.nosdn.127.net/3AA4495907443D7F24F121CB2252E470.jpg?imageView&thumbnail=890x0&quality=100" />
C、<img src="http://edu-image.nosdn.127.net/7E26BE606098965321EF4A995172D4C1.jpg?imageView&thumbnail=890x0&quality=100" />
D、
期末测试
1、【单选题】Which is not the analog quantity?
A、time
B、pressure
C、sound
D、Temperature values per hour
2、【单选题】Which of the following are not correct?
A、Digital signals are discrete signals
B、In computers, digital signals is often represented by binary numbers.
C、They are divided into positive logic signal and negative logic signal according to logic.
D、The sound is a discrete value.
3、【单选题】Which is the difference between series and parallel circuits?
A、different current
B、different voltage
C、have /no branch circuit
D、
4、【单选题】what is conductance?
A、proportional to resistance
B、reciprocal of resistance
C、
D、
5、【单选题】The result of A÷B is called ( )
A、sum
B、difference
C、quotient
D、 product
6、【单选题】Which is basic logic gate?
A、NAND GATE
B、 NOR GATE
C、OR GATE
D、XOR GATE
7、【单选题】The first integrated circuit was invented by ( )
A、Thomas Edison
B、Jack Kilby and Robert Noyce
C、Newton
D、Albert Einstein
8、【单选题】Doping excludes ( )
A、diffusion
B、rounding
C、ion-implant
D、
9、【单选题】The process of package excludes ( )
A、wafer test
B、diffusion
C、die separation
D、attach
10、【单选题】Die attach is the physical attachment of the die to ( ) or substrate
A、lead frame
B、wafer
C、metal
D、base
11、【单选题】 ( ) is the act of extracting the original information-bearing signal from a modulated carrier wave.
A、Demodulation
B、Modulation
C、
D、
12、【单选题】Which is not the characteristics of CMOS( )
A、strong anti-noise ability
B、 highly integrated
C、increasing the rate of final products
D、
13、【单选题】1. Which two letters are combined into the logo of Bluetooth?
A、H+B
B、Y+B
C、H+D
D、Y+D
14、【单选题】Which structure must users connect station by accessing AP?
A、 centerless structure
B、central structure
C、
D、
15、【单选题】cable network, the word cable means( )
A、电缆
B、钢索
C、有线的
D、
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