multiple choice
1. According to this lecture, the core of the blockchain centralized computing and processing mode is ( ). (2.5 points)
A business acceptance system
B business access system
C business agency system
✔ D centralized business processing system
Correct answer: D
2. Smart contracts allow trusted transaction execution without a trusted third party, with ( ). (2.5 points)
A bidirectionality
✔ B irreversibility
C reliability
D transparency
Correct answer: B
3. ( ) is the earliest application of the blockchain and the most successful large-scale application. (2.5 points)
✔ A Bitcoin
B Ethereum
C Consortium chain
DRscoin
Correct answer: A
4. The concept of blockchain was proposed by ( ) in 2008. (2.5 points)
A Tomojin Matsushita
✔ B Satoshi Nakamoto
C Tokiko Kato
D Hiroshi Yagi
correct answer: B
5. The first country in the world that can issue a national digital currency is (). (2.5 points)
A United States
✔ B China
C Japan
D United Kingdom
Correct Answer: B
6. As mentioned in this lecture, the teacup is implanted into the sensor chip and matched with the individual's health data, so that there is a () effect between the individual and the teacup based on the data. (2.5 points)
✔ A positive feedback
B negative feedback
C positive correlation
D negative correlation
Correct answer: A
7. () In April, the digital currency of the People's Bank of China was born, which is equivalent to the digitization of the RMB. (2.5 points)
A2014 B2017
C2019 ✔ D2020 Correct answer: D
8. As mentioned in this lecture, there are () items on Taobao for people to choose from anytime, anywhere. (2.5 points)
✔ A1.6 billion
B2.2 billion
C1.9 billion
D1.3 billion
Correct answer: A
9. It was ( ) that first introduced the voice interactive interface to commercial use. (2.5 points)
AIBM BSamsung✔CApple
DGoogleCorrect
Answer :
C
10. The underlying coding logic of a classical computer is actually (), so its computing power output will be limited. (2.5 points)
A quaternary
✔ B binary
C decimal
D ternary
Correct answer: B
11. After 2000, ( ) is the most active field of nanotechnology. (2.5 points)
A smart city
B genetic engineering
C smart agriculture
✔ D biomedicine
Correct answer: D
12. Now, most of the drugs we humans use are ( ). (2.5 points)
A Nano drug
✔ B Small molecule drug
C Macro molecule drug
D Chinese herbal medicine
Correct answer: B
13. Nano-robots are designed and manufactured according to the biological principle of ( ), using advanced nano-manufacturing technology to operate "functional molecular devices" in nano-space. (2.5 points)
✔ A molecular level
B atomic level
C proton level
D nano level
Correct answer: A
14. According to this lecture, among the following diseases, the one that is less suitable for nanomedicine is ( ). (2.5 points)
✔ A cold
B tumor
C cardiovascular disease
D degenerative brain disease
Correct answer: A
15. According to this lecture, the development of network platform technology has promoted the change of ( ). (2.5 points)
✔ A Industrial Structure and Industrial Organization Model
B Industrial Structure
C Industrial Organization Model
D Industrial Chain Evolution Model
Correct Answer: A
16. According to this lecture, network software infrastructure promotes industrial development () innovation. (2.5 points)
A Concept
✔ B Service
C Structure
D Organization
Correct answer: B
17. According to this lecture, WeChat locks the social relationship between people through the interpersonal network, which reflects the ( ) characteristics of the network. (2.5 points)
A Externality
B Increased returns to scale
✔ C Lock-in effect
D Zero marginal cost
Correct answer: C
18. According to this lecture, ( ) should be used as a breakthrough to accelerate the transformation and upgrading of the manufacturing industry. (2.5 points)
A Industrial revolution
B State-owned enterprise reform
✔ C Supply-side structural reform
D Delegating power, regulating services and reforming
Correct answer: C
19. According to this lecture, ( ) is the leading industry of my country's national economy, the main body of the real economy, and the main battlefield of scientific and technological innovation. (2.5 points)
A collective enterprise
B private enterprise
C state-owned enterprise
✔ D manufacturing industry
Correct answer: D
20. According to this lecture, the competition of enterprises is the competition of ( ) in the final analysis. (2.5 points)
✔ A talent
B education
C comprehensive national strength
D management mode
Correct answer: A
multiple choice
1. According to this lecture, the basic elements of blockchain include ( ). (2.5 points)
A Cryptography
B Consensus Algorithm
C Embedded Database
D Smart Contract
EP2P Network
Correct Answer: ABCDE
2. According to this lecture, the block header of the blockchain mainly contains ( ). (2.5 points)
A Merkle root
B Hash value
C Timestamp
D Random number
E Target hash function
Correct answer: ABCDE
3. According to this lecture, the technical characteristics of blockchain include (). (2.5 points)
A Decentralized
B Highly transparent
C Collective maintenance
D Immutable
E Safe and credible
Correct answer: ABCDE
4. The network layer of the core technology architecture of the blockchain mainly includes ( ). (2.5 points)
A Network management
BP2P network
CDHT
D Discovery node
E heartbeat service
Correct answer: ABCDE
5. As mentioned in this lecture, the five major factors of production in my country do not include ( ). (2.5 points)
A data
B real estate
C talent
D machine
E technology
Correct answer: BD
6. The following options that belong to the different characteristics of 5G mentioned in this lecture compared to 4G are ( ). (2.5 points)
A5G has a very wide bandwidth
. B5G can provide 100 times higher link density
. C5G has the characteristics of low latency
. The network delay of D4G is generally more than 15 milliseconds
. The network delay of E5G is generally 5 milliseconds
. Correct answer: ABC
7. China has created "four little dragons" in the field of face recognition, namely ( ). (2.5 points)
A Shangtang Technology
B Megvii Technology
C Yitu
D Yuncong
E Apocalypse
Correct answer: ABCD
8. Among the following statements about the development of nanotechnology, the correct ones include ( ). (2.5 points)
A When science and technology and industries have entered modern times, they are actually pursuing to understand and transform the world
on the scale of "extremely small". Nanotechnology
C Nanotechnology is transformative
D Nanotechnology is lagging
E Nanotechnology is driving
Correct Answer: ABCE
9. Among the following statements about nanotechnology and intelligent society, the correct ones include ( ). (2.5 points)
A The core of the sensor is the micro-nano processing technology and sensitive materials
B The sensor is the core technology of the smart society, the smart society and the smart city
C The precision manufacturing is the core technology of the smart society, the smart society and the smart city
D Nano Technology is the core of the sensor
E information technology is the core of the sensor
Correct answer: ABD
10. Nanotechnology is a () frontier science and technology, including nanomedicine technology and smart medical treatment. (2.5 points)
A platform type
B cross type
C fusion type
D single type
E universal type
Correct answer: ABCE
True or False
1. The blockchain is a distributed ledger formed by sequentially appending the blocks confirmed by consensus using cryptography. (2.5 points)
✔ A Correct
B False
Correct Answer: Correct
2. Digital signature algorithms are mainly used to form Merkle trees. (2.5 points)
A True
✔ B False
Correct Answer: False
3. The consensus is that multiple participating nodes confirm or verify the data according to a certain mechanism to ensure that the data is correct and consistent in the ledger. (2.5 points)
✔ A Correct
B False
Correct Answer: Correct
4. The embedded database eliminates the overhead associated with client-server configuration and requires large memory overhead. (2.5 points)
A True
✔ B False
Correct Answer: False
5. The essential value of blockchain lies in distributed collaborative trust. (2.5 points)
✔ A Correct
B False
Correct Answer: Correct
6. The first phase of my country's central bank's digital currency pilot is located in Xiong'an New Area. (2.5 points)
A True
✔ B False
Correct Answer: False
7. Big data is a shared ledger system based on a distributed network. (2.5 points)
A True
✔ B False
Correct Answer: False
8. Once there is ubiquitous computing power, smart transportation, smart city, smart weather, etc. may all change. (2.5 points)
✔ A Correct
B False
Correct Answer: Correct
9. Siri is a combination of two technologies, speech recognition and information aggregation, but the logic is still relatively simple. (2.5 points)
A True
✔ B False
Correct Answer: False
10. According to this lecture, compared with the United States, China is lagging behind in the world in terms of the total number of nanotechnology papers, highly cited papers and patent grants. (2.5 points)
A Correct
✔ B False
Correct Answer: False