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【单选题】
如图所示,R为一可变电阻,电源电动势为E,内电阻为r,当 电源的输出功率最大。A.
R最大
B.
R最小
C.
R=r
D.
R=1/2r
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举一反三
【单选题】计算机是一种按照设计好的程序,快速、自动地进行计算的电子设备,计算机开始计算之前,必须把解决某个问题的程序存储在计算机的( )中
A.
硬盘
B.
软盘
C.
内存
D.
CPU
【单选题】如何判断顺序栈S是否为满? (栈底base,栈顶top,栈长度L)
A.
S.top ==S.base
B.
S.top == S.L
C.
S.base == NULL
D.
S.top-S.base == S.L
【单选题】________in 1980, the company's base is in Qingdao, but it has branches throughout the country. [ ]
A.
Being founded
B.
Having founded
C.
Founding
D.
Founded
【单选题】计算机是一种按照设计好的程序,快速、自动地进行计算的电子设备,计算机开始计算之前,必须把解决某个问题的程序存贮在计算机的()
A.
硬盘
B.
软盘
C.
内存
D.
CPU
【单选题】Building on the base of evidence and interpretation in Hansen's (1994) qualitative study (working people's diaries, we assigned each diarist a set of codes to indicate employment, marit: status, numbe...
A.
It was the foundation of the research.
B.
It was the groundwork for the research.
C.
It was the research that was coded.
D.
It was the example used for the coding.
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