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【多选题】
公文在写作中运用语言的表达方式主要有哪些?A.
叙述
B.
描写
C.
说明
D.
议论
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反馈参考答案：
举一反三
【单选题】HDB3 码 +1 0 0 0 +v -1 0 0 0 -v +1 -1 +1 0 0 +v -1 +1, 那么其对应的原始消息代码为()。
A.
1 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 0 1
B.
1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 1 1
C.
1 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 1 1
D.
1 0 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 1
【单选题】HDB3 码“+ 0 - + 0 0 0 + 0 0 0 - + - 0 0 - 0 0 0 +”进行译码的结果是______。444
A.
101100010001110010001
B.
101100010001100010001
C.
101100000001110010001
D.
101100000001100000001
【单选题】Dialoge 2(P35) Listen to a dialogue between the police officer and the man who reports a theft.Listen once to get the main idea.Listen again and choose the best answer to each of the following questio...
A.
At a park
B.
In a shopping center
C.
Not known
【判断题】Listen again and check (✔) the reasons why Jason feels satisfied with his present job. 1 He has a big office.
A.
正确
B.
错误
【单选题】Listen to the interview presented by "Visions of the Future".Listen once to get the main idea.Listen again and choose the best answer to each of the folling questions. (Dialogue 3 P19) 1.What is the t...
A.
City growth and planning in the 21st century.
B.
Population growth in the 21st century.
C.
Transport designing in the 21st century.
【简答题】已知信息代码为 1 0 0 0 0 0 0 0 0 0 1 1，求相应的AMI码、HDB3码、PST码及双相码。
【单选题】A. Listen to the conversation and choose the right answers to the questions. 1. What do you know about Peter? a. He is an active sportsman. b. He is a keen cyclist. c. He enjoys playing baseball. d. H...
A.
D
B.
B
C.
Because she wants to enjoy good health, she also wants to stay in shape and look good
D.
Both Peter and Laura like cycling and swimming. Laura also plays tennis regularly.
【简答题】已知HDB3码为码为-1 0 1 -1 0 0 -1 1 -1 1 0 0 0 1 -1 0 1 -1，与之对应的原单，与之对应的原单极性二进制码序列为（）。
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