# 2023知到答案 Digital Logic Circuits 数字逻辑电路 完整智慧树网课章节测试答案

Title

## 第一章 单元测试

1、单选题：
The number of values that can be assigned to a bit are ( )

A:three
B:ten
C:two
D:one

2、单选题：
Compared to analog systems, digital systems ( )

A:are less prone to noise
B:can handle much higher power
C:all of the above
D:can represent an infinite number of values

3、单选题：
The term bit means ( )

A:a 1 or a 0
B:a small amount of data
D:binary digit

4、单选题：
A quantity has continuous value is ( )

A:a binary quantity
B:a digital quantity
C:an analog quantity
D:a natural quantity

5、单选题：
Verilog HDL is a ( )

A:hardware
B:programming logic device
C:logic device
D:computer language

6、判断题：
A category of digital integrated circuits having functions that can be altered is known as fixed-function logic.

A:对
B:错

7、判断题：
Data are information only in numeric.

A:对
B:错

8、判断题：
Two broad types of digital integrated circuits are fixed-function and programmble.

A:错
B:对

9、判断题：
The nonrecurring engineering (NRE) cost for an ASIC design is normally low.

A:对
B:错

10、判断题：
There is an “invalid” region between the input ranges for logic 0 and logic 1

A:错
B:对

## 第二章 单元测试

1、单选题：
For the binary number 10000, the weight of the column with the 1 is ( )

A:10
B:8
C:16
D:4

2、单选题：
The 2’s complement of 1000 is ( )

A:0111
B:1001
C:1010
D:1000

3、单选题：
The fractional binary number 0.11 has a decimal value of ( )

A:¼
B:½
C:¾
D:none of the above

4、单选题：
The number 1100 in BCD is ( )

A:equal to decimal ten
B:equal to decimal eight
C:invalid
D:equal to decimal twelve

5、单选题：
An example of an unweighted code is ( )

A:binary
B:Gray code
C:decimal
D:BCD

6、单选题：
An example of an alphanumeric code is ( )

B:BCD
C:ASCII
D:CRC

7、判断题：
The overflow occurs when adding the following 8-bit two’s complement number: 01011101+00110001

A:错
B:对

8、判断题：
The overflow does NOT occur when adding the following 8-bit two’s complement number:10111111+11011111

A:对
B:错

9、判断题：
In general, we need at most bits to express the product when multiplying an n-bit number by an m-bit number.

A:错
B:对

10、判断题：
An addition overflows if the addends’ signs are the same but the sum’s sign is different from the addends’.

A:错
B:对 