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【单选题】
数字示波器可以测量波形的多种参数,如图所示的标示中,下列符号说明中不正确的是A.
a：过冲
B.
b： 峰峰值（V p-p ）
C.
c：幅值
D.
d：有效值
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举一反三
【单选题】What is the man saying about the reading contest?
A.
He is eager to atened it.
B.
The contest is like a gamble.
C.
He will atened it if the woman does so.
D.
He is tired of the contest.
【多选题】What is skim reading?
A.
It is a process of speed reading.
B.
It is visually searching for clues to the main idea.
C.
It is an important academic skill at college.
D.
It is conducted at a rate of 700 words per minute and above.
【多选题】What is skim reading?
A.
It is a process of speed reading.
B.
It is visually searching for clues to the main idea.
C.
It is an important academic skill at college.
D.
It is detailed reading .
【多选题】What is skim reading?
A.
It is a process of speed reading.
B.
It is visually searching for clues to the main idea.
C.
It is an efficient way to read newspaper.
D.
It is detailed reading .
【多选题】What is skim reading?
A.
It is a process of speed reading.
B.
It is detailed reading.
C.
It is an important academic skill at college.
D.
It is visually searching for clues to the main
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