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【简答题】
R1=5欧姆,R2=10欧姆,将它们串联接在15V电源上,则R1消耗的功率是( )若把这两个电阻并联接在另一电源上,R1消耗的功率是10W,则R2消耗的功率是( )。
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【单选题】Advertisement 2 is a Math Tutor Service advertisement. Which of the following is not strong point of the tutor?
A.
patient
B.
competitive
C.
professional
D.
young
【简答题】阅读理解 A university math tutor has discovered the science behind 'singledom',finding that our chances of finding the perfect partner are just 1 in 285,000.Peter Backus,a tutor at the University of Warwi...
【简答题】A university math tutor has discovered the science behind “singledom”, finding that our chances of finding the perfect partner are just 1 in 285,000. Peter Backus, a tutor at the University of Warwick...
【单选题】What does the man suggest the woman do?
A.
Get a math tutor.
B.
Switch to art.
C.
Stick to architecture.
D.
Ask for her parents' advice.
【简答题】试解释以下名词:数据、信号、模拟数据、模拟信号、基带信号、带通信号、数字数据、数字信号、码元、单工通信、半双工通信、全双工通信、串行传输、并行传输。
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